All my roms are in directories present at the apps directory, like /apps/atari 2600 roms, /apps/fba roms, /apps/mame4all roms, and /apps/neo geo roms. Sure, I had to navigate there on my first launch, but now it goes to that directory automatically. I don't think the location of the roms is a problem. I placed the roms inside another folder I also created, at /apps/oddysey roms Inside the bios folder I placed the bios file, called O2ROM.BIN o2emBETA201411012125) I created a folder called bios There were already several folders in that directory that started with a dot and then had the names of the emulators I already installed, so it should be the right location. According to my FTP client, it is at /home o2em directory in $HOME, so I created it. I have installed all my emulators there with no problems. I installed the emulator on the /media/data/apps directory. The problem is probably with the files' location. On my case, the program runs, however, every time I select a rom, the screen goes black for a split second and then goes back to the rom directory. Thank you David, for porting the Odyssey 2 emulator to the Zero. Thats unfortunate about the issue, so close lol thanks for the status its still fun to play in its current state