🧪 Bounce Lab
Drop a wobbly test dummy in, place some tools, and see what silly reaction you can build.
How to play
- Tap a tool below (or press its number key) to pick it up, then tap the scene to place it.
- Add a 🧍 Dummy, then try a 🟪 Trampoline, 🌬️ Fan, 🧲 Magnet, or 🌀 Portal (place two to link them!).
- Tap a placed tool to select it. Rotate or delete it with the small controls that appear.
- Place a 🧺 Goal Basket for a light challenge: get a dummy inside it!
- Save your favorite scene layout with the Save buttons. It's stored only on this device.
A physics sandbox built to be silly, not violent
Bounce Lab is an open-ended physics playground: drop in a wobbly test dummy, then place tools around the scene and watch what happens. Trampolines and bouncy walls launch a dummy around; fans and magnets pull or push it; ice and glue change how it slides; a linked portal pair teleports anything that enters one side out the other. There's no wrong way to arrange a scene, and a goal basket adds a light, optional challenge if you want one.
The test dummies themselves are the key design choice: each one is five body parts held together by permanent physics joints, so they can wobble, flop, and get flung around in genuinely funny ways but can never actually come apart. That keeps the physics comedy the whole point, without it tipping into anything more graphic.
Two save slots let you keep your favorite setups, all stored locally with no account. Free, no download. See more building and physics games on the Sandbox Games page.
Frequently asked questions
Is Bounce Lab violent?
No. The test dummies are built from 5 jointed parts connected by permanent physics constraints, so they physically cannot come apart. The comedy stays in the silly physics, not in any kind of harm.
What tools are available?
Ten in total: trampoline, bouncy wall, conveyor, ice, glue, fan, magnet, water pool, portal pair, and a goal basket.
What do the portals do?
Place two portals to link them; anything that enters one comes out the other.
Can I save a scene I built?
Yes, there are 2 save slots. Scenes are stored locally on your device, no account needed.