- legs brake landings at 4.5 g; vertical support is a rate-limited servo
(no launch when stepping onto a mantled ledge)
- ground control pushes back on movable ground (seesaw tips under the player)
- playground hinges use absolute paths (joint paths resolve from the joint)
- big props grabbable via surface query; Reset props keeps playground pieces
- spike: landing, seesaw, playground joints/grab, person-like wall climb
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>