He encontrado este interesante post sobre funcionamiento de roms en EFA 512 (no es ez, pero puede orientarnos) y las pruebas están hechas con passme y juego metido:
I have EFA 512Mb, Passme and usually I boot with Mr Driller or Mario 64.
So far my tests reveal...
ROMs that don't patch
0028 - Kirby - Canvas Curse (U)(Trashman) - no ReadRom signature
0035 - Touch! Kirby's Magic Paintbrush (J)(GBXR) - no ReadRom signature
0038 - Ping Pals (U)(GBXR) - no ReadCard signature
0066 - Tom Clancy's Splinter Cell - Chaos Theory (E)(Lube) - no ReadRom signature
0071 - Tom Clancy's Splinter Cell - Chaos Theory (U)(Trashman) - no ReadRom signature
ROMs that patch but don't work
0016 - Meteos (J)(Wario) - Double white screens
0024 - Robots (E)(Trashman) - Double white screens
0026 - Pokemon Dash (U)(Trashman) - Double white screens
0032 - Bomberman (J)(Independent) - Bad dump so locks up at menus
0036 - Daigasso! Band Brothers (J)(GBXR) - Double white screens then turns itself off
0044 - Tennis no Ouji-Sama 2005 - Crystal Drive (J)(Lube) - Double white screens
0057 - Pokemon Dash (J)(Squirrels) - Double white screens
0059 - Robots (U)(Trashman) - Double white screens
0060 - Meteos (U)(Lube) - Double white screens
0074 - Ganbare Goemon - Toukai Douchuu (J)(Trashman) - Double white screens then freezes on Double black screens
0096 - DS Rakubiki Jiten (J)(WRG) - Double white screens then freezes on Double black screens
ROMs that the patcher finds some SnycCore signatures (Needed for GBA save)
0011 - Guru Guru Nagetto (J)(Wario)
0032 - Bomberman (J)(Independent)
0042 - Nintendogs - Chihuahua & Friends (J)(Brassteroid Team)
0052 - Another Code - Two Memories (E)(Trashman)
0058 - Naruto - Saikyou Ninja Daikesshuu 3 (J)(Trashman)
0060 - Meteos (U)(Lube)
0068 - Nintendogs - Shiba & Friends (J)(PROJECTG)
0074 - Ganbare Goemon - Toukai Douchuu (J)(Trashman)
0075 - Nintendogs - Miniature Dachshund and Friends (J)(Trashman)
0080 - Nanostray (U)(Lube)
0083 - Osu! Tatakae! Ouendan (J)(PROJECTG)
0092 - Lunar Genesis (J)(Trashman)
0093 - Fullmetal Alchemist - Dual Sympathy (J)(Trashman)
0094 - Akumajou Dracula - Aoitsuki no Juujika (J)(WRG)
0095 - Yu-Gi-Oh! - Nightmare Troubadour (U)(Lube)
0096 - DS Rakubiki Jiten (J)(WRG)
I have tried every ROM from 1-61 and a few other random ones. The other ones between 1 and 61 boot up and seem to play fine, obviously I haven't tested them extensively but they worked for me.
If anyone gets one of the ROMS that won't work for me working on their GBA flash cart please correct me. I saw the Meteos boot video that WeaponX posted so it's clearly not a bad dump unless you have a different one.
0095 - Yu-Gi-Oh! - Nightmare Troubadour (U)(Lube) - Patches, runs but text is not visible.
En el hilo siguiente, de donde he sacado la info, la gente está posteando su experiencia con sus cartuchos, está bastante bien organizado:
http://gbatemp.net/index.php?showtopic=27483&st=0