VOO is a narrative game where a ball of garbage transforms into a weightless paper plane, symbolizing an Old Man's life with mistakes and regrets. The player guides the ball to reach the Young Man, conveying the message that he has the power to shape his own life.

The game's main mechanic involves sacrificing abilities to ascend to a new state, such as using garbage for movement abilities like swinging on a rope made of chewing gum or climbing walls with cork pins.