Drag back from anywhere and let go to launch. Keys: ← → aim, ↑ ↓ power, Space to launch.
Orbit Golf
Mini golf, but the course is a solar system.
Pull back like a slingshot and release. Planets bend your shot, red repulsors push it away, and touching a
planet costs you the shot. Sink the probe in the glowing hole in as few launches as you can.