Sends and best attempts save on this browser. Final challenge opens after one send in each place.

Four limbs. One body. Move a hand, shift your weight, bring your feet up. Keep your hips over your feet to recover grip.

Q / E / Z / C or 1–4

Select left hand / right hand / left foot / right foot.

Enter · [ / ] · mouse click

The gold ring suggests the next edge for your selected limb. Enter places it; brackets cycle alternatives. You can also click any chalked edge. Amber means out of reach. Sidepulls need hips on the indicated side.

WASD / arrows

Shift hips up, down and sideways. Held keys move continuously. Arrow buttons nudge hips without a keyboard.

Space hold / release · Charge jump

Charge on supported feet. Release to jump toward the suggested edge, or aim at an edge with the mouse; all contacts release, then the selected hand must catch within reach. With mouse controls, click Charge jump, wait for charge, then press Enter or click an upper edge.

Right-drag / left-drag blank rock

Orbit camera. Wheel zooms. F recenters. No pointer capture required.

X · R · Tab · Escape

Release selected limb · retry · journal · pause.

Compact simulation: body mass, reach constraints, directional contact loads and two-bone IK. No force-driven finger contacts, rope simulation or full rigid-body ragdoll.