Exoheaven

WASD: Move
Click: Shoot
Right Click: Shoot Special
Space: Shield
Shift: Slow Movement

Each time you hit an enemy or block a bullet, your special attack charge increases. When the bar starts flashing you can right click to shoot a super-powered special attack! Once the bar fills you may then only use your special attack. Killing certain enemies with the special attack will allow you to pick up their gun and use it.