Southpaw engine is a video game engine designed for the Game Boy Advance to produce first person shooters. It was developed by Australian developer Torus Games.The engine allows first person games to be reproduced with a maximum of 19 levels, 8 enemies and 5 save game slots, to fit within an 8MB Game Boy Advance cartridge.The game engine is most likely retired with no future titles announced using the Southpaw engine.