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.

Hella fun arcad-y game.

Controls aren't very sharp, but the physics of all the objects in this world is great!

Fun Flash 2D platformer with interesting Boss Battles and progressive difficulty.

I really, REALLY want to love this game. It has amazing designs and some incredible looking bosses, a great sense of what made old 90ies arcade-games so über-ridculous and fun. It has a kickass-soundtrack, too. And lots of really cool ideas as well - in theory this should be one of the best games of it's kind.

There is just one little problem: physics. This could have been something like Metal Slug or classic Contra - but the physics ruin it all by adding a certain random element to a form of gameplay that since the olden days of Arcade-yore demands precision and perfect control. As a result the entire game doesn't behave in the way one would expect and becomes extra-frustrating when you get stuck in another crate or when all kinds of objects land on your ammo-pick up or Health-pack preventing you from getting them in time and thus failing your mission for no acceptable reason. It's "random and fun"-approach gets old rather quickly, trust me. There are infinte examples where the physics just keep the gameplay from achieving ultimate greatness - less would have been more in this case.

Another problem is the use of Flash. While it's certainly the most impressive flashgame I have ever seen, it is also capped at 30 frames per second - meaning the game feels sluggish and slow further adding to the whole "floatyness" and feeling of imperfection due to random physics. For every really cool moment this game has there are two equally frustrating bits where you either die by random stuff flying around or not being able to advance because you either need to clear out debris (by running into them or shooting them - there is no real pushing/dragging-mechanic as far as I know) or use objects to create platforms to jump to higher areas.These moments drag the game down, hinder the flow of the action and add nothing other than silly randomness that will be on your nerves once you start trying to take the game more serious. Especially in combination with rather long levels that aren't exactly all that varied it just becomes even more apparent that the inclusion of solid objects being subject to a physics engine was not a good idea or at least not an idea that has been really thought through.

Due to this, I just cannot recommend this. Consider it an incredible techdemo that shows insane amounts of developer talent - but if you are looking for something "proper oldschool" it does not deliver. Particularly if you grew up on Turrican, Metal Slug or Contra/Probotector - avoid this! It may look the part, but it just doesn't play like it.

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. Apparently it even has co-op! 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%.