Description: Dodge thousands of bullets and defeat legions of foes.
Instructions: Mouse/Arrow Keys: Movement
Z/Y/Click: Main Weapon
X/Double-Click: Sub Weapon
C/Space: Bomb
Shift: Focus – Slows you down. Useful for keyboard controls.
If the game runs slowly, turn off the graphics stuff in the options.
Also, if you experience any problems with the keys sticking, just use mouse controls instead.