Super Mario: The Last GBA Quest is a fan made GBA game based on the Super Mario game series. It was developed by both YodaJr and Omg.
It is quite a well designed fan game, and despite being a somewhat short game manages to prove itself as a capable Mario fan game with it successfully replicating the same sort of feel as Nintendo’s amazingly put together games.
The game contains seven main levels, each of these levels have a special PA coin that you need to collect in order to be able to unlock the eighth game level. This level is where you get the chance to actually save Peach.