
// physics / arcade / prototype
BONKBOUND
A knight cursed into a ball slings around a castle, bonking crates into clockwork guards. A three-room physics expedition, early in development.
▶ Launch gameDesigned for mobile, tablet, desktop
About the game
A wizard took a fair fight personally, and now the knight is round. Drag back on the sling pad and let go to launch, then watch the ricochets play out.
This build is a short expedition through three rooms: a courtyard with a charging clockwork guard, a pressure-plate puzzle that only the heavy Lead shell can solve, and a final keep where the plate opens the guard's pen. Hearts carry from room to room; Reset retries the current room.
Swap between a bouncy Rubber shell and a heavy Lead one, and try both clock modes: Freeze stops the world while you aim and runs it for two seconds after each shot, Real-time keeps everything moving. A Debug panel lets you tune impact damage, launch power, lead weight and floor drag live.
How to play
- Press Play. That tap also starts sound if it is switched on.
- Drag back on the sling pad at the bottom and release to launch the knight the opposite way.
- Bonk the guard hard enough, directly or with a crate, to knock off its three hearts. Watch the red arrow: it charges every 1.4 seconds.
- Pressure plates need a resting weight of 3: the Lead knight, or two crates. Rubber is too light.
- Defeat the guard or open the gate to unlock the exit, then smash through the doorway (launches are boosted once it opens) and press Continue. If you are bonked out, press Reset to retry the room.
- In Freeze mode, a quick tap on the pad lets the world run for one burst without launching. Switch clock mode at any time; switch shell while the world is frozen or paused.
Credits & rights
(c) 2026 Tommy Cunningham. All rights reserved.
Physics by Matter.js 0.20.0, MIT licence, (c) Liam Brummitt and contributors.