Ok, I'm starting it and will be updating this first post with information about which version of games you need to work 100% on the ED64.
Common problem is save in ED64 with Flashram games.
Most of this games had been cracked by LaC to work on some old copiers.
If you know where to find those roms, let us know and I'll update this post.
Here is a list of US games and which kind of save those games use:
LIST OF SAVE TYPE OF EACH GAME
Game cracks thanks Sanni (post #2)
NAME - LINK TO CRK
Command & Conquer GER PAL
Jet Force Gemini PAL NTSC
Ken Griffey Jr's Slugfest
Legend of Zelda: Majora's Mask, The PAL NTSC or use Legend of Zelda, The - Majora's Mask (E) (M4) [f1].z64
NBA Courtside 2 featuring Kobe Bryant [this game uses the controller pak]
Pokémon Puzzle League
Pokémon Stadium [the game boots but can't play]
Pokémon Stadium 2 [the game boots but can't play]
Starcraft 64 [boots but freezes]
Tigger's Honey Hunt
WWF: No Mercy [boots but freezes]