Well, let's talk about Brawlhalla for a sec, shall we?
At first glance it would seem as though it's a PC game going for the style of Smash Bros. On the 10th or so glance, it seems as though it's a PC game going for the style of Smash Bros. But with a few twists that keep it mostly seperate.
First of all is the weapon system. I personally LOVE this mechanic. You start off with your weak melee attacks until you pick up a weapon, displayed on-screen as a generic sprite. When that happens, you get a non-generic weapon. Each character has a combination of two weapons that they can recieve. There's guns, spears, hammers, 1 sword, 2 swords, and a rocket lance. That's right, a rocket lance. Though each weapon is not exclusive to their characters, each character has 2 exclusive moves (1 per weapon) that they can use. Each weapon is VERY nicely balanced, and I'll talk more about that later.
There are also items you can pick up, though variety is sparce. There are spiky balls called Mace-Balls, which you throw at enemies. There are land mines, which you can either throw at your opponent(s) or at the walls and floors. Finally, there are plain ol' bombs that will make you stare in disbelief as you fly off into your doom after some ♥♥♥♥ throws one at you.
Online play. I'm a little... eh about the quality of the online play at the moment. On one hand, it's incredible to wreck people online and tell them "gg" before having all of them ragequit, (Seriously, check out my Brawlhalla screenshots, I have that one in there somewhere) there is a lot of lag sometimes. On one hand, some matches can be as smooth as offline play, on the other hand some can involve unforseen game mehanics such as teleportation and death by "I swear that guy was on the other side of the map .01 seconds ago". Despite this, the developers have stated repeatedly they are constantly working on improving online play. They have had multiple lag fix patches already and more are to come. So, that'll make the game even better.
Offline play is so fun. There's a tournament mode where you play against CPUs to be the ultimate champion. The CPUs are pretty easy themselves, but the challenge lies in not getting killed while gathering many kills to get a high score. There is a star rating out of 5 you get at the end, with 5 being pretty difficult to acheive (SPOILER: There's a practically impossible rating to get that's above 5 stars... No more hints as to what it is) Also, there's local play where you can play with up to four people using controllers, and one person can use the keyboard or keyboard-mouse. No LAN unfortunately. The last thing is training mode. I won't go too much into detail with this, but imagine Smash Bros' training mode + damage per hit shown, visible hitboxes, and hitstun visibility.
The balance. Outstanding. Though this could also be a statement as to the lack of variety, you could almost press random in a tournament match and come out the victor with anyone you got. Of course, it's not perfect. But unlike some other games, which have tier lists from SS all the way down to F or even G, Brawlhalla's tier list is more like an SS to A.
Wait, did I say "tournament match"? Yes, Brawlhalla has a competitive community that even now, in closed beta, is over 100 strong. This is when the game isn't publicly available, and there's over 100 people participating in competitive play. Think about that for a moment. As I write this even, I am procrastinating much needed sleep for a Brawlhalla tournament tommorow.
-Great brawler in the style of Smash Bros
-Good offline mode
-Has an online mode
-Near impeccable balance
-Growing competitive community
-Online mode can be VERY laggy at times
-I can't beat Raidhyn
-No LAN play
-I can't come close to beating Raidhyn
-A little empty (Probably just a closed beta problem)
-I have to fight Raidhyn in a tournament tommorow
-Many characters are kind of similar
Not sure if PRO or CON:
-Very limited variety on items
-Similar enough to Smash Bros to almost be called a ripoff. Not quite though.
-Raidhyn is a very very good competitive player. Think Ken (the Smash Bros Marth player) in his prime. (I may or may not be biased because I can't beat him.)
9.5/10 game, for being in beta.
If this was the finished product, I'd give it an 8 or 8.5/10.
Very much reccomend this, as it's free to play. I've gotten REALLY into it.
TLDR: Brawlhalla is a great game and it's free. You like brawlers you'll love Brawlhalla. Play it.