The challenging Thing Thing series continues with more non-stop action. Now it is time to hunt down and eliminate the one who started it all.

It is kill or be killed. You must kill a certain number of enemies before being allowed to move to the next level. A message at the bottom of the game will inform you when the exit or a new area is open to you.

The in-game Game Guide is worth a read.
Controls:
Walk: A and D
Run: Shift key and A or D
Jump: W
Double Jump: Tap the W key twice
Duck: S
Backflip: W key while moving backward

Aim weapon: Mouse
Shoot weapon: Left mouse click
Change weapons: E
Throw weapon: Space
Melee weapon: Q