I got lucky and received my Nintendo Game and Watch Super Mario Bros. one day early - and immediately started hacking it! In this video we will teardown the device, take a look inside, and find how we can put our own, customized ROM onto it!


Resources:
- Twitter: https://twitter.com/ghidraninja
- Twitter thread: https://twitter.com/ghidraninja/status/1326855097083686917
- Game and watch scripts: 
https://github.com/ghidraninja/game-and-watch-hacking
- STM32H7B0 Reference manual: https://www.st.com/resource/en/reference_manual/dm00463927-stm32h7a3b3-and-stm32h7b0-value-line-advanced-armbased-32bit-mcus-stmicroelectronics.pdf

Also many thanks to SciresM ( https://twitter.com/SciresM ) on Twitter from telling me that Nintendo basically exclusively uses AES-CTR!