Gravity Panic

Use the planets as shield and weapon.

Play Gravity Panic (opens on the project's site)
Screenshot of Gravity Panic

Gravity Panic is the fourth game in the Panic series: a toroidal 3×3-screen world with a radar where planets attract everything that moves. Gravity bends bullets and crashes enemies, so every planet is both a hazard and an ally.

Planets do not kill on contact: your ship skims, orbits or slingshots away like a comet. The goal of each level is to collect the three guarded cores to strip the boss of its shield and destroy it.