Bullets fired will be the same color as your turret and can only hit enemies of that color. Anything that isn?t your current color will appear as grey. Grey bullets can hurt grey enemies, but grey enemies can still hurt you.
Move mouse to aim, click/hold to fire.
A S D or ? ; L to change weapons.
Hold SHIFT to slow enemies (limited usage), release to recharge.
R or I to use a bomb (limited number)
SPACE to change color
P to pause
Q to toggle quality
M to mute