BUILD
Python 3 with Pillow required. From each games/<name> directory, run the command in BUILD.txt. The official SDK packer is included under tools/. It packs byte-identical runtime files and the selected 76x76 icon.

TEST
Tests are host contracts, not VMU Pro firmware emulation. Python audio tests use Lupa. Lua tests accept a Lua5.4 executable; this release was checked with int32/double and int64/double builds. Run tools/test_whac_buster_audio.py from the archive root; tools/test_whac_buster_audio_32.lua under Lua5.4. From games/Whac-A-Met run lua ../../tools/test_whac_buster_runtime.lua Whac-A-Met default; repeat with imported and missing_sprite. The int32 audio script takes the extracted archive root as its optional first argument. Each game's tests/ contains additional regressions and evidence where applicable. Physical-device test remains necessary.
