@tangyi
2436 Riku (Jap), Hulk, Carnival Games and Daigasso failed to work with v.121 in my original R4.
Except the above games, all other games that I tested (eg. FF4, Yoshi Island, Pokemon Explorer Time, Adv war dual ruin, animal crossing, DungeonExplorer, FF TacticsA2, KungFuPanda...