Megabyte Punch (Steam key/Region free).

http://store.steampowered.com/app/248550/
Megabyte Punch is a fighting/beat ‘em up game in which you build your own fighter!

As you travel through different environments, you battle other creatures to get their parts. Parts have their own powers and bonuses, like gun arms for a shoot ability or powerful hips for a devastating pelvic thrust attack. Then, using the abilities of your customized fighter, you can compete in the tournament or battle against other players in a destructible arena.

The game takes place in an computer world where you protect the Heartcore of your village against the likes of the Valk Empire and the dreaded Khoteps in 6 different levels with each 3 stages and a boss fight!
Key Features
Chunky stylish graphics.
6 unique electro-worlds with boss fights
150 parts to collect and endless combinations to customize your character.
Pumpin´ Electro Soundtrack.
Compete in the tournament for rare parts.
Up to 4 player local co-op and versus mode.