Thanks for reading this thread. I'm sure this question was asked (and answered) several times and I searched the forum, but I'm more confused now then when I've started looking for the answer. I have a DS Lite and an R4DS Slot-1. Perfect for playing DS games. Now, what do I need to play GBA games on my DSL? I assume I need a Slot-2 card, but which one is "the best" (like the R4) and fits the DS? And I saw some Slot-2 cards that don't support GBA. How come? And what else do I need? Passkey? Or can I use my R4 for that purpose? As you can see, I'm confused. Can anyone give me some tips, please? All I want is to play some GBA games on my DS... Thank you.