Add-on dossier

Custom Game Boy ROM experiments

A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.

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DEF CON 32 Badge historical

community firmware

Community ROM work showed the badge running custom Game Boy ROM code and controlling all nine LEDs beyond the default controls.

Badge
DEF CON 32 Badge
Type
community firmware
Status
historical
Compatibility
DEF CON 32 Badge
Source
https://www.calvin.sh/projects/dc-32-badge-flashy/

Badge context

Related Resources

design and firmware assets

DEF CON 32 badge media-server directory

Official media-server source for assets.zip, Badge_Game_Music_v2.zip, badge_readme.txt, DC32 HW.zip, DC32BadgeGame.zip, DEFCON-32-BadgeFirmware-main.zip, and FREEWiLi firmware documentation.

Badge: DEF CON 32 Badge

event page

DEF CON 32 event archive

Official DEF CON archive source for August 8-11, 2024 dates, Las Vegas Convention Center venue, pricing, and post-con media archive links.

Badge: DEF CON 32 Badge

Source trail

Evidence Sources

Calvin Liang · retrieved 2026-05-15

DEF CON 32 Badge Flashy ROM

Community ROM source for Game Boy ROM behavior on the DEF CON 32 badge, all-LED control observations, and public code publication.

Badge: DEF CON 32 Badge

CosmicBonBon / GitHub · retrieved 2026-05-15

DEFCON 32 Badge Game

Public source for the GB Studio badge-game project, graphical assets, playable itch.io link, and ROM-hacking/remix context.

Badge: DEF CON 32 Badge

DEF CON · retrieved 2026-05-15

DEF CON 32 News

Official source for badge sale and extra-badge posts, first-RP2350-board wording, save-issue patch notice, and DEF CON's response to badge controversy.

Badge: DEF CON 32 Badge