A friend of mine loaned me his GBA, because I thought mine was faulty. Turns out the EFA linker doesn’t work on his GBA either. I tried three GBA games, each of which crashes at some point before gameplay starts.

• WarioWare Inc.: Mega MicroGame$
• Gunstar Super Heroes
• Fire Emblem: The Sacred Stones

However, when I put the same games on the card, and put the card in the Nintendo DS, all of the games work. The Nintendo DS has its own problems, which I need to investigate by trying different DS games as soon as I can. However, the DS has yet to crash on me with GBA game, so it looks like the problem isn’t with the EFA, unless newer games have to be patched or something.