In Down!!, you must fall from platform to platform while avoiding the spikes. You can pick up a parachute to fall down slower, a water jug to fall down faster, or an invincibility power-up to avoid getting hurt on the spikes. Getting a combination of the invincibility power-up and the heavy water jug will make you fall down through any platforms you hit until you're almost out of invincibility. Even with the simple graphics and sound, the game is very addicting.