Man, I deeply love this game and I didn't know it actually came out on Feb this year. So badass. Too bad GBA version can't do that. At least they have MMBN6 hack. Anyway enough sidetrack about that. I am using this emulator by WinDSPRO. Version is 0.9.12. They added up with this. Git#c128460 x64-JIT SSE2. This emulator work perfectly fine until I found hidden subway and after Mayl watching Lan gone, emulator crashed and shut it down by itself. I tried again and happen again....
MegaMan Battle Network: Operate Star Force crashed in DeSmuME
MegaMan Battle Network: Operate Star Force crashed in DeSmuME