Arc Light

Arc Light is a single-cell spiral almost straight up, then the whole way back down. It holds two ladder records: the biggest drop at 11 cells and the widest gap at 5.3. Twenty-seven jumps, four checkpoints.

Up the spiral first — 23 cells of climb inside a 32 by 63 footprint — then a descent that gives back 14 of it, netting 9. The 11-cell drop is survivable and intended; it is the fastest way down, and the 5.3-cell gap is on the descent, taken while already falling.

The descent is not the reward for the climb. It contains the two hardest measurements on the ladder, and the checkpoint before it is the one worth reaching cleanly.

What it teaches: Jumping while falling, at distances nothing else on the ladder asks for.

Ranked against all 23 courses on the same measurements, this one holds 3 places:

• the third-most climbing of any course on the ladder — 23 cells gained
• the widest single jump on the ladder — 5.3 cells of air
• the longest fall on the ladder — 11 cells

Outright places only — ties are not claimed.

Derived from this course's own geometry, not typed in — how the times are worked out.

• Overclock — Single-block landings, the whole way. One jump sits on the limit.
• Filament — Flat single-cell landings, turning the whole time. One long jump up.
• Lattice — Ninety degrees into a one-cell target every hop, with two plunges to rest.