In Space Survival - Rainbow Friends Monster, you play as a futuristic space soldier armed with powerful weapons, battling waves of quirky yet menacing rainbow-colored monsters in an urban battlefield. The game features side-scrolling action where you must move strategically and take down enemies with precise shooting. Defeat incoming monsters to gain experience points and coins, which can be used to upgrade your gear. Each level becomes progressively harder with new robot monster types, such as baseball bat-wielding foes in red helmets. Survive the chaos, level up, and eliminate every monster that threatens your mission!