Hmmm, I guess I'll try another FDS image in that case. Thanks
Update: I tried 3 different rom, none work. I tried Bio Miracle Bokutte Upa (1988)(Konami).fds (CRC 9CBD8207) and Bio Miracle Bokutte Upa (1988)(Konami)[a].fds (CRC 88F4A912) from the TOSEC project and I also tried Bio Miracle Bokutte Upa (Japan).fds (CRC: C57B947F) from No-Intro. So I don't think it can be because of the FDS image I'm using as those are definitely not corrupt and all of them do a reset loop.