Pause game play and press L. Press L again to leave that screen. Doing this on the landscape generation screen will return the game to the title screen.
Hold Top R and press Red to toggle the display between all names, your names, and no names.
Hold Top R + Blue during game play.
Press Green, Up, Pause(2), Yellow at the title screen to immediately get three sheep, one banana bomb and one minigun. Enter the weapon options screen for unlimited sheep.
Hold Top R and press the D-pad to shift the view around the current level.
Hold Top R + Red to change the fuse on a grenade, cluster bomb or banana bomb.
Hold Top R + Blue to toggle between high and low bounces on a grenade, cluster bomb or banana bomb.