iO

iO is a physics platformer where you control a ball that can grow or shrink on command. Changing size alters both speed and mass—shrink to accelerate downhill, expand to build momentum or crush through obstacles. Each level presents a puzzle built around these size-shift mechanics: you'll need to time transitions carefully to navigate gaps, ramps, and gravity wells. The goal is reaching the exit, ideally fast enough to earn a gold medal. Levels reward experimentation with physics rather than reflexes alone. It's a compact game about understanding how weight and velocity interact, then exploiting that knowledge to shave seconds off your runs. Suits players who like tinkering with systems until they click.