P.O.M.M. is a top-down 2D shoot-em-up game about a Mech mechanic who decides to destroy the space station he works on using a modified Mech from his shop. The UI features a style reminiscent of golden age arcade games, with a HUD that is styled after the idea of the player being inside the Mech cockpit. In this sense the elements appear as controls throughout the cockpit, and the HUD features a subtle holographic effect to the edges of the screen to simulate looking out through the front port of a technologically advanced Mech.