For the Godot Wild Jam # 25.

Score is damage based. Build score multiplier by dealing damage without dying. Bullets can only harm things of the same color, and you can switch freely between the two colors. The game is currently an infinite level, and enemies get harder every 4 waves.

In addition to the keyboard control schemes mentioned in the game, there is an unmentioned controller option:

D-PAD/LEFT STICK - move

R1 - shoot

PS TRIANGLE/XBOX Y - color switch

START - pause

Sound assets were all made using BeepBox.