add opening movie to GBA game
https://feuniverse.us/t/custom-op-movie-insertion/5849
A better patch by AetherDust: https://www.bilibili.com/video/BV1ZM411f7TB/
An updated guide with bugfixes by Vesly: https://github.com/Veslyquix/ASM/tree/main/Meteo-AVI-to-GBA