Rampage

Game description:

If you've ever watched one of those old Japanese horror movies starring a guy wearing a rubber monster suit and thought to yourself, "How can I get a job like that?", here's your big chance. Wreck everything. Eat everything. Burn everything. Climb everything. Smash everything and rejoice in a game that rewards unruly havoc rather than kiddie grade heroics.

Game controls:

Player 1:
Up arrow key to climb up.
Down arrow key to climb down.
Left arrow key to move left.
Right arrow key to move right.
Space to punch.
"," to jump.

Player 2:
W to climb up.
S to climb down.
A to move left.
D to move right.
C to punch.
V to jump.

Player 3:
8 to climb up.
5 to climb down.
4 to move left.
6 to move right.
7 to punch.
9 to jump.