Question: must have gba games reddit?
Answer: Castlevania Aria of Sorrow.
Golden Sun 1 & 2.
Advance Wars 1 & 2.
Boktai 1 & 2.
Fire Emblem and Fire Emblem Sacred Stones.
Warioware and Warioware Twisted.
Metroid Fusion and Metroid Zero Mission.
Super Mario Bros 1 & 2 & 3, Super Mario World, Yoshi's island (Super Mario Advance series)