Hmm. Look at this
I am currently playing the legend of zelda minish cap on it and it works fine
Yes, the iPlayer can run a GBA emulator. But we are talking about the R4.
I really wish people would stop bringing up the iPlayer when ever anyone asks about running GBA games on the R4, M3, Acekard, etc, etc, etc.
The iPlayer is not the solution to running GBA games from these flashcarts.