
Solve puzzles by morphing between different critters with distinct physics:
Regular Rat: Your balanced, jack-of-all-trades default form.
Buff Bear: Heavy and immune to being crushed. Pushes blocks at double speed and lifts other players or crates on its head.
Magnet Mole: Sticks to metal walls and uses a magnetic field to pull keys, items, and teammates closer.
Jr. Jerboa: Tiny and floaty. Squeezes through half-tile gaps, but is fragile enough to be crushed by their teammates.
The catch? Only one player can use a special form at a time. Morphed into a shape your friend needed? You just yanked it away from them, forcing them back into a regular rat. Expect plenty of accidental squishing, platforming chaos, and immediate revenge.
Tackle over 40 built-in stages ranging from gentle tutorials to mind-bending gauntlets. Earn Silver, Gold, and developer Specialist medals by optimization and tight movement. If you run out of levels, dive into the Steam Workshop to download fresh, player-made content.
Build your own devious levels from scratch and upload them to the Workshop. The editor gives you the exact same tools used to make the campaign:
Dual-Layer Layouts: Place blocks, tracks, and hazards across two separate layers of depth. Create an immersive level by adding cosmetic tiles to special cosmetic layers.
Complex Logic & Wiring: Connect momentary switches, toggles, and timers. Customize their behavior with AND/OR logic, one way valves, count down blocks, and flip-flops to build elaborate security gates, moving mazes, and timing-based gauntlets.
Use complex button logic and two layers to create complex gambits and puzzles.