In RumDreams, you control a little green blob of goo that navigates a dangerous 2D platform world. The environment is full of sharp spikes, moving spiky walls and strange floating eyes that fire projectiles. Your goal is to collect three glowing energy balls scattered throughout each stage while dodging these dangers. Gameplay involves precise jumping, timing and strategic moves to avoid instant death from the dangerous obstacles. Each stage increases in difficulty, challenging your reflexes and puzzle-solving skills as you help the goo escape this strange and hostile world.