This game looks like mini-DCUO, where you can control Atomic-powered character in order to defeat the main antagonist - Brainiac (in DC comics Brainiac is an AI-based villain originated from Krypton, which constantly tries to conquer Earth after Krypton's blowing up). This is SHMUP-like game with several levels, you can upgrade the protogonist to effectively counter new enemies and bosses. Unicorn Trinket (old DCUO meme) is there too. This game contains sounds, recorded from actual DCUO. Because this game was made prior to releasing Atomic powerset, all powers have yellow-green palette, instead of orange one.

Controls: mouse - aim/shoot, WASD - move, Shift - shield, Space - SuperCharge.