This release incorporates a graphical facelift based on feedback in various Discord servers.
Highlights:
Achievements: Don't get stuck if player earns "No scope" just before reaching the exit
Wall facelift: Add volume and top-to-bottom gradient to wall (suggested by Daid); remove shear on side walls (suggested by DragonDePlatino); define door frame (suggested by M-Tee); darken area outside floor on GBC
Add a shade to the underside of Libbet's body
Floor: Larger dots on black tile (suggested by DragonDePlatino); larger flat areas on dark gray vent/grating tile moving detail to corners; square off corners (suggested by IRCWIP)
Compute entire GBC palette before copying it first frame (reported by toxa)
Switch to slightly faster random number generator
Work around crash on boot related to STAT IRQ in VisualBoyAdvance
Document sprite sheet rectangle list syntax (requested by ISSOtm)
Switch from dedenter to RGBDS 0.4.0 indented local labels
Download ROM and source zipfile below (114 kB) or from the GitHub release
There is indeed a quirk. SGB system software starts the Game Boy core before it is ready to receive command packets from the running game. This is more evident when running from a single-game cartridge (such as GB-LIVE32) than from a flash cart that has its own menu.