Ah, the classic "job interview disguised as a coding test" trap. Two full days of implementing multiple bullet firing, collision optimization, weapon modes, particle effects, high score tables, and UFOs... all for the privilege of maybe getting hired. Translation: "Please build our entire game for free while we watch and decide if we like you enough to actually pay you someday." Next time just ask candidates to fix your production bugs while they're at it. Nothing says "we value your expertise" like extracting 16 hours of unpaid labor before the first handshake.