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Void Bloom 1.3.1 — distinct bomb rumble waves
Makes damage and bomb rumble easier to distinguish on the optional rumble pack. Damage is one sharp 80 ms knock. The bomb produces two waves over the 30-frame (0.5 second) visible blast, separated by a 167 ms fully-off interval. Pause silences output immediately; resume follows the remaining blast.
Actual Rev0 PWM measurements verified both crests, zero output between them, pause stop and timer expiry without advancing game frames. In a sound-muted A/B comparison, the user confirmed the motor stops between bomb waves. A debug-only comparison screen is available; ordinary release builds run the game.
Gameplay rules are unchanged from 1.3.0, whose validation included 48/48 delayed-observation campaign pilots clearing wave 12, 80 rendered boundary cases, and 24/24 no-hit movement-only first-boss runs. These are heuristic simulations with 100–200 ms input cadence, not human playtests. Fresh release-firmware emulation measured 60 fps in the opening window with no CPU faults; dense-wave handheld performance was not measured.
Includes portable .chgame, Rev0 firmware, native .CHG with cover, offline web emulator, GIF captures, validation records and checksums. The SD-menu cartridge on the connected console remains 1.2.2 because the card did not mount; the 1.3.1 firmware was directly flashed and launched.