Live preview (JavaScript)
The loop is played live in your browser from the validated loop table (the same data the reference render below was made from); the badge on the player is its self-test (seam + motion probes). The pre-rendered reference follows.
COB-exact: timeline 1:1 from armfboy.cob (gait + aim/fire (COB VM), disassembled with _cob_dis.py). StateChg staged-deploy family: 2 open stages, then the compiled close order — not a reversed activate. Fire/hit/death/smoke scripts are engine-driven or firing-only and not part of this loop.
Animation

PNG frames

Frame 0 / 20.00 s
COB timeline (ARMFBOY.COB)
- 0.00–0.00 s — Rest pose (the seam pose — both window ends settle here)
- 0.00–1.41 s — Walk() — one full stride cycle (compiled slides; form-(c) legs run past the sleep clock)
- 1.41–5.98 s — AimPrimary + 4 x FirePrimary (ARM_FATBOY_LASER, 1250 ms) — at the COB aim speeds, shots on that weapon's reload grid
- 5.98–5.98 s — Close: Aim(0, 0) calls the engine would send next — back to the rest aim (engine pacing sleeps stay out)
- 5.98–7.39 s — Walk() again, then settle — the loop restarts seam-clean from the rest pose
Every stage duration equals its COB sleep exactly; values are raw COB units (turns: BAM 65536 = 360°, moves: elmo × 163840). Renderer conversions follow the proven family conventions (_cob_anim.py).