Click/Space - Shoot Ball C - Clear Balls Up/Down Arrows - Move Tank Forward/Backward Towards/Away from Mouse S/Click on Tank - Settings Settings - Press Green Flag to Reset to Defaults: Bounce - How Bouncy Balls Are. If you want no bounce, I recommend a small amount anyway to keep it realistic. (Def: 0.7) Gravity - How much the balls are pulled up or down. If Negative, the balls will fly down. (Def: -0.5) Ball Lifespan - How long until the balls disappear. If 501, will be an infinite lifespan. (Def: 250) Ball Collision - If the Balls can collide with the tank and other Balls. If 1, this setting is on. (Def: 0) Air Friction - How much speed is lost as ball moves. (Def: 0) Gravity Fields- If 1-4, there will fields that mess with gravity. If 5, You can create your own gravity fields. Level - The Map used to simulate the balls in. Changes Gravity Field Layouts.
Credits: @griffpatch for tutorial Gravity Fields: White - Normal Blue - Negative Dark Gray - Zero Red - Strong Yellow - Low Purple - Slow - Slows Down All Movement, including Gravity.