Keyboard.
Arrow keys to move.
Q, W, E, R (or A, S, D, F) to change colors. Number keys 4 or 5 to shoot missiles. No number pads to make it fair for laptop users.
To defeat an enemy, first change your color to the enemy?s color, then shoot missiles. Enemy?s health will decrease depending on the number you pressed. The enemy?s health must reach EXACTLY 0, not higher or lower, to be killed. If it reaches below 0, it will make a big explosion that deals lots of damage, so be careful!
E.g. If an enemy has 17 health, you can use one 5 damage missile and three 4 damage missiles to kill.
Ah, and remember to buy upgrades too. They will help you a lot.
This game automatically saves your data, so don?t worry.
Don?t cheat. Cheating will cause money penalty.