"This is some of the most fun I've had with a game so far this year, and it will go down as one of the best side-scrolling shooters of all time.
User reviews:
Very Positive (894 reviews) - 83% of the 894 user reviews for this game are positive.
Release Date: Sep 11, 2012

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“It is a meeting point between old game design and new, with every other moment punctuated with some of the most thrilling level and boss design to grace the genre. As improbable as it may sound, this game made by one guy not only stands up to the classics, it is every bit as good as Gunstar Heroes and Contra.”
9/10 – Destructoid

“If you’re a fan of the genre, then this one is a no-brainer, and a wholehearted recommendation.”
87/100 – IndieGameMag

“I have to tell you about Intrusion 2, because it’s like a game from my stupid dreams about games that couldn’t exist.”

Steam Big Picture

About This Game

Intrusion 2 is an action platformer set in a sci-fi environment on a reserve planet occupied by a hostile military corporation conducting forbidden weapon research. Intrusion 2 is inspired by classic 16bit era sidescrollers and focuses on classic fast-paced action combined with modern physics and animation.

Key features:

  • 9 huge action-packed levels
  • Enemy behavior based on physics and procedural animation
  • High interactive environment
  • 3 multistage boss battles
  • 3 difficulty modes, with more enemies and dangers on hard mode

System Requirements

SteamOS + Linux


    • OS:Windows XP, Vista, Windows 7
    • Processor:2 GHz
    • Memory:1 GB RAM
    • Graphics:DirecX 9 compatible
    • DirectX®:9.0
    • Hard Drive:100 MB HD space
    • Additional:supports XBox Controller


    • Processor:2.4 GHz
    • Memory:2 GB RAM
    • Additional:supports XBox Controller


    • Processor:2 GHz
    • Memory:1 GB RAM
    • Hard Drive:100 MB HD space
    • Additional:supports XBox Controller
Customer reviews
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Very Positive (894 reviews)
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608 reviews match the filters above ( Very Positive)
Most Helpful Reviews  Overall
73 of 93 people (78%) found this review helpful
10 people found this review funny
13.9 hrs on record
Posted: December 21, 2013
There's a section of the game where you're snowboarding down an avalanche on part of a dropship which you just destroyed fighting cyborg ninjas with rocket launchers who also fire ballistic missiles with giant mecha-snakes inside of them at you.

10/10 game would recommend
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39 of 44 people (89%) found this review helpful
3.8 hrs on record
Posted: June 29, 2014
Rating: 9/10
Status: Fantastic 2d Action game

The Good:

+ Great sense of action especially the first few levels. Game holds nothing back.
+Great variety of weapons
+ 3 different mechs to pilot
+ AMAZING Last Boss fight. Really surprised me how good it was. Definitly the highlight of the game for me
+ Nice length, does not wear itself out
+ Interesting physics however it can get annoying at times (objects get in your way)

The Bad:

-Controls may be a slight issue, one of the few 2d games where k/m was better than the controller.
-Because of the physics some boss battles may be more reliant on luck than skill
-Can be a bit frustrating at times.

If your looking for a solid 2d action game than this is for you.
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35 of 41 people (85%) found this review helpful
9.6 hrs on record
Posted: December 4, 2013
I got this game with a Humble Bundle a while ago and thought it was pretty mediocre after playing the first level. I must've seen some spark of greatness in it though, because I kept it in my "Currently Playing" folder instead of moving it to my Steam Graveyard of games I am finished with or don't care about. Boy am I glad I did. I booted it up and after another slightly less mediocre first part to the second level, I got to ride on a wolf mount. It was a little awkward to control, but I felt powerful and had a lot of fun.

From there it only got better. Epic boss fights, a few fun guns (laser and grenade launcher), three different pilotable mech suits, and non-stop action. If you like Metal Slug, Contra, and sometimes frustrating physics, this game is for you! And for any achievement hunters out there, it's not too difficult to 100%.
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28 of 36 people (78%) found this review helpful
2.8 hrs on record
Posted: June 30, 2013
INTRUSION 2 is a 2D run n' gun action platformer along the lines of Metal Slug or more vaguely Contra. This is one badass, fun game, with epic, memorable bosses and creative elements like some pretty basic physics and destruction. You can destroy log bridges to send everyone falling to their doom, blow up the supports of watchtowers. Crush enemies under boulders you push over. Physics like that, which add to the fun. The enemies can take a beating and the weapons feel good, but even if there is a variety of weapons, not many feel different from one another. The levels seem like a marathon. They are so long you might find yourself wondering when they end. This is probably good.

Earlier I mentioned epic bosses. I don't use that term lightly. It makes me feel weird, but let me tell you about the first boss, a helicopter or hovercraft with arms with multiple phases. If its not shooting at you, its dropping soldiers out. If its not trying to hand pound you into the ground, its literally crawling after you. Its insane and awesome. It is very memorable and covers a lot of ground.

To keep things fresh, you can pilot mech suits... if not grab the gun off of a destroyed mech and use it on your enemies. Oh and if that's too normal for you, in the first level, you can ride a giant Arctic wolf. Its pretty nice.

The game is challenging, you do have a health bar, and ammo depletes, and you can die more from the controls than you do anything else, BUT the game is very forgiving, with plenty of checkpoints.

The controls take a bit of getting use to. You have your standard jump, duck and weapon switch keys, but then to aim you use your mouse. This allows for more precise aim, but I'm more used to the Contra controls of having 8 direction shooting instead of precision. If you're used to Teraria, you'll be used to this. There is floaty jumping that can take some getting used to and the physics seem really light and springy. The boxes will bounce around if lightly nudged. Some of the animation is springy like old cartoon characters. That is probably Flash animation for you.

It took a while to get over it, but when I did, I found this game to be really fun to play. There are crazy Holy ♥♥♥♥ moments, and moments where the physics can have some unique experiences for a 2D run n gun game, such as seeing a mech jump onto a floating box. The box bounced the mech up and kinda floated away just enough for a giant fish to eat the mech. That wasn't supposed to happen, but it did, and it was cool.

Well worth $10.
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21 of 26 people (81%) found this review helpful
12.7 hrs on record
Posted: December 15, 2013
Great game. Enemy&boss designs are awesome(and I actually mean it!), physics effects are actually useful, music fits the gameplay. Most of the problems come from the fact that it was made with Flash. Controls are somewhat laggy, framerate seems to be capped at 30, but still doesn't feel smooth, bad gamepad support, etc. None of these problems are game-breaking though, just a minor irritation, for me at least.
Update. I see that many reviewers compare it with Contra/Metal Slug and don't like the added physics effects. Well, this is NOT Contra. To me, its more like Abuse, which also was slower, controlled with mouse and involved slightly more thinking than average platform shooter. Physics, in my opinion, adds to the game, making every playthrough slightly unique, creating unexpected opportunities as well as irritations. I heard, this is called "emergent gameplay", but Nintendo kids seem to prefer games they can memorize and play by reflexes alone, instead of improvising, even a little.
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17 of 21 people (81%) found this review helpful
3.0 hrs on record
Posted: June 24, 2014
Intrusion 2 is basically Metal Slug with physics. Objects get thrown around, trees bend and wobble, and enemies wave their mechanical tentacles around.

I didn’t really care much for the physics, but I guess that’s what made the gameplay a bit different from similar games. The mech designs were cool and the boss battles were epic. The final battle in particular was one of the most insane boss battles I’ve ever played in a game.

My main criticism about Intrusion 2 is that the levels just dragged on for a bit too long. Enemies and scenery just repeated a few times too many. It took me over two hours to play through the game, while Metal Slug fits the same amount of content into a much shorter game with more replay-value.
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17 of 21 people (81%) found this review helpful
1 person found this review funny
11.9 hrs on record
Posted: March 15, 2015
Intrusion 2 is a modern take on Contra/Metal Slug. And when I say modern, it is not an empty word!

However, let's start with what is familiar: Intrusion 2 is a 2D side-scroller with action and platforming, shooting soldiers and robots (some of which can be piloted) while occasionally negotiating some jumps. A lot of games have tried to ape the aforementioned classical games, but very few have come close to touch their greatness. Usually, they are dull with scarce enemies, repetitive levels and clunky controls.

The controls of Intrusion 2 are not beyond any criticism. There is some floatiness to the main character, but it does not make it clunky. It just feels weird, but it is still reactive and shooting is instant. One of the reasons for this feeling is that the characters are not sprites with all their animation frames pre-rendered. Every limb, every object in the game is actually controlled like a puppet by the physics engine. A modern spin that sets this game apart from its ancestors, in addition to the ability to shoot at 360°. The physics make the game feel both awkward and awesome at the same time, as robot legs fly around and kill soldiers in their fall. And there are mechas with grappling hooks battling by throwing rocks at each other when they are not flying around pulled by their ropes before a sword finish.

Sounds cool? Wait until you see the boss fights. I have rarely seen such amazing boss fights. They have tons of different stages and are hard while still being easy to learn, making them an entertaining challenge. They also look good, which helps making those fights memorable.

However, if the game keeps things fresh and cool during the first hour, once the novelty factor wears off the levels feel too lengthy and look-alike. There is very little variation in the settings and formula despite the promising snowboard chase at the start. The music is not especially interesting and too repetitive/annoying rather quickly. The robots have terrific art and animation, but the backgrounds look oddly photo-realistic and not very awe-inspiring. Since I am tackling the negative points, the difficulty associated with whimsical physics might frustrate quite a number of players. If you are not a good player, set the game on easy and enjoy the awesome beginning. If you like a good challenge with still more leeway than a very demanding game like Contra, you will no doubt pull through the short campaign and have a good time despite the less entertaining later levels.

A concession to make to the physics engine is that the game runs slowly. The framerate does not go higher than 30 frames per second, and some slow-downs can be experienced even on a good machine. This is most likely due to the fact that the game was coded in Flash, just like the original Binding of Isaac. Surprisingly, despite the intensive use of physics, there are very few bugs and issues. The controls are well tuned so that the player can instinctively achieve any action without pestering, such as grabbing cords or moving over physics-bound objects.

As a conclusion, this game is not perfect but an impressive example of what a modern Metal Slug/Contra would be. There are a lot of very cool stuff in here, so I definitively recommend trying out this game. Especially for the battles against larger enemies and the boss fights. The game feels like it is great and could almost be placed up there with Metal Slug/Contra, but it is dragged down by a few negative aspects and lack of variety once the beginning is behind.

Good news, most if not all of my gripes appear to have been corrected in the next game from the same developer: Jetpack Squad. This is something very promising that I am definitively looking forward to, and hopefully Intrusion 2 was the stepping stone to a masterpiece!
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20 of 27 people (74%) found this review helpful
7.8 hrs on record
Posted: February 12, 2014
I can't believe how absolutely awesome this game is! Also the fact that this was only made by one guy over the course of three years makes it even beter!
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22 of 31 people (71%) found this review helpful
21 people found this review funny
0.6 hrs on record
Posted: August 2, 2015
What are you doing right now?

Are you:
-Riding a Wolf?
-Killing Everything?
-Fighting Giant Robots?
-Shooting a Laser Gun?
-Wearing a Badass Red Scarf and Goggles?

Buy this game.
You will not regret it.

10/10 butt-clenching levels of action at all times
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15 of 21 people (71%) found this review helpful
4.4 hrs on record
Posted: October 18, 2014
One of the greatest platforming shooters, with wonderfully difficult bosses and constant enemies which require different strategies to defeat, as well as one of the best final bosses in any game EVER.
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Recently Posted
8.4 hrs
Posted: October 4
The last boss battle was hard as hell, but I would play a boss rush game with bosses of that caliper all day long. Great controls, awesome physics and graphics. It's just fun to play, you know? No grinding, or leveling up, or inventory. Just solid gameplay.

Where's the 3rd installment at? My wallet is ready.
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Luminus Mallus
2.4 hrs
Posted: October 2
Enjoyable, until you get to the -presumably- last enemy. A ridiculous, disgusting giant piece of ♥♥♥♥ that kills you by throwing you off screen, or simply by endlessly repeating the same idiotic, unavoidable attack waves.
It's so tedious and annoying that it becomes idiotic. I uninstalled out of anger because there was nothing fun in it.

The game is basically a graphical demo with no more than 7 total enemies, and 6 weapons out of which you only use two.

I was prepared for this kind of garbage, so I played it in low difficulty. Even so, It annoyed me to the point of uninstall.
Don't play this unless you are into amiga-time platform garbage where boss fights are stupid chores that you have to memorize.
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4.6 hrs
Posted: September 17
For a game built on Flash by a single Russian guy over the course of two years, Intrusion 2 quite the product.

It plays like a crossover between Contra and Metal Slug. There's not much of a story - you're basically some mercenary with a red scarf sent to a part-forest, part-tundra planet to shoot the crap outta everything, with no narration as to why. But the old school games never did bother with such details, did they? It's short (only 6 levels in total), and aside from the achievements you won't have much reason to replay it, but the experience is fun enough to deserve the purchase. That's about my only complaint, because everything else is just minor gripes.

Each level throws you into over-the-top situations that would feel right at home in some anime or AAA-title setpiece. It's slightly more forgiving, though - there are no limited lives to worry about, no one-hit deaths, checkpoints, and you can save your progress. It has it's tough spots, but nothing that feels unfair or too frustrating. The game also has a physics engine, and it's put to good use. One memorable moment has you traversing a series of floating pontoons over waters infested with large, hostile marine life, while also dealing with enemy soldiers. Since the pontoons keep bouncing around in the water and react the weight of whatever's on them or any nearby explosions, it's possible to knock enemy guards into the water and see them get eaten up by the wildlife. And while on land, the physics engine also applie to any crates, barrels, eplosive propane tanks, or uneven boulders lying around, meaning you can easily weaponize the environment in often goofy ways.

Just like in Metal Slug, there's vehicles to use, this time in the form of a couple of mechs to drive, including a giant wolf which you can mount and ride. And yes, he even chews on enemy soldiers if you let him.

The enemies deserve some mention. While the typical soldiers you'll be gunning down en-masse aren't anything special, the robotic foes are. Many of them have limbs and weakspots which can be individually targeted, and will continue flailing around, trying to pursue you even if their legs/tentacles/arms/whatever have been entirely blown off. The amount of persistence they show is notable as well - once these guys pop up, you'd best try and get rid of them, because they WILL chase you to the end of each level if allowed.

And the final boss? Well let's just say it's got a reputation for being one of the longest, craziest and overall-awesome final boss fights in recent history for those who've beaten it. Heck even the prior two boss fights are pretty damned good!

TL;DR? If you're a fan of old-school sidescrolling shooters, Intrusion 2 is good enough to recommend grabbing even without a Steam Sale going on.
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Razor [GER]
6.9 hrs
Posted: September 15
if you dont have this game...why dont you have it ? It also features one of the best last boss battles ever for that alone you need to buy it.
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2.6 hrs
Posted: September 14
newgrouinds game
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4.9 hrs
Posted: September 8
I am not a fan of the physics "little big planet feel" of the jumping everything else however is ♥♥♥♥ing epic.
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6.1 hrs
Posted: September 4
This game is an absolute gem. It's fast-paced, fluid and a blast to play. This game is a side scroller shoot'em up, ala Metal Slug, but you utilize your mouse to aim where you want your bullets to go.

The boss battles are a real joy to learn and beat. The set pieces are great. You can even ride around on a wolf!

The types of enemies are many and you get into interesting situations when multiple types are attacking you.

The art style is lovely. You can tell that this is a passion project for Alexey Abramenko, the sole creator (sans music), of this game. His passion directly translates into your fun; this game is highly, highly recommended.
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2.2 hrs
Posted: September 3
This has to be the most frustrating physics engine I have ever seen in a game.
Nearly every object has weirdly sticky rubber ball physics and WILL block you.
The checkpoints are really far apart at places so you play for 10-15 minutes just to get blocked by random debris and die to an enemy that threads the needle. If you don't just get smashed by flying objects from off screen.
I can understand the positive ratings, because when the physics behaved it was pretty neat, but in the end it's just not worth the hassle of constantly having to wrestle every rock, drum and box in this game.
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iWatch (Mario) Skinodds.com
19.9 hrs
Posted: August 28
This game is very good, this game have bugs, but not very much.
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0.7 hrs
Posted: August 27
It's not fun.
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