Elasto Mania 1.0

Registered executable: test/binaries/candidates/elasto-mania/Elma/Elma.exe, app id elasto_mania, image base 0x400000. Imports DSOUND.dll!DirectSoundCreate.

Browser recording and sound (2026-09-10)

The game presents a 4:3 image. A user recording begun before fullscreen had 2528×1534 encoded dimensions and horizontally stretched gameplay. The recorder resized its capture canvas on source transitions; it now fixes the session dimensions and contains new sources proportionally. Safari retaining initial encoder dimensions is the leading explanation, not a directly reproduced Safari result. test/test-recorder-aspect.js fails against the old code and passes with the fix.

Audio is lazy: at launch the WineAssembly instance has no _audioCtx. After the guest requests audio, a 44100 Hz context appears. The old recorder checked only once and therefore made a permanently video-only file when started early. The recorder now owns a stable audio track from the start and attaches newly created guest contexts during recording. Browser regression: node test/test-recorder-late-audio-web.js.

Actual game verification used /private/tmp/elasto-audio-probe.js: start recording immediately after launch, navigate through player/menu/level screens, hold Up to accelerate in Level 16 (New Wave), then reach the failure screen. The saved /private/tmp/elasto-audio-real-game.mp4 contains real guest sound (no injected tone): stereo AAC, mean −40.8 dB, peak −14.9 dB measured by ffmpeg volumedetect. Sampling the result menu alone gives silence and is insufficient to decide whether the game produces sound. Hold menu keys for about 250 ms in automated probes; instant presses can be missed by this game's polled input under load. The original user recording has no audio stream to recover.

Video repair details and cut points: downloads/elasto-mania-recording-notes.md. Recorder fixes are local source changes; this investigation did not deploy them.

Acceleration and a qualified frame counter (2026-10-10)

test/test-elasto-mania-candidate.js's Enter route (200,000-block batches, 16 ms tick, --copy-superops) reaches Level 16 New Wave at batch 1050. Holding Up from 1060 to 1160, after the load has settled, drives the bike (rider facing left) along the clifftop and off the edge; by 1250 it is airborne and tumbling and the minimap marker has moved. Evidence: scratch/runs/20261010T0600Z-elasto-mania-control-frames.

One present is one frame: over batches 1050-1300 the game flipped the primary (0x08011018) 921 times from one site (return 0x437e38), each after one back-buffer (0x08011020) Lock/Unlock, and all 921 presents changed the picture. Elasto renders unthrottled (~3.7 frames per 200,000-block batch, ~54k guest blocks per frame), so a per-guest-second rate only reflects the batch budget. --frame-stats records each Flip twice; halve its raw series.