Guardian Sphere

"Guardian Sphere" is a shooter game where players must use their life points to purchase upgrades and strengthen their Guardian to fend off waves of invaders. The game is playable in single-player, local co-op for two players, and features a soundtrack and story about the ultimate energy source, Spheres, and the guardians who protect the planet from an unknown species. The game was initially created for Ludum Dare 44 with controls that support keyboard and gamepad.