Mordecai and Rigby are having a monster Marathon, while wearing special 3-D glasses. Now, they have entered a world in which they themselves are the ones controlling the monsters! Help them in defeating their friends and enemies' monsters!

Select a character from the menu and start fighting!

Controls:

Use the arrow keys to move around, and to jump up and crouch.

Use 'Z' to punch, and 'X' to kick.

Use 'C' plus arrow key for special moves!