Marheaven - Knockin on Heaven's Door

Mar Heaven: Knockin' on Heaven's Door is an action-RPG on Game Boy Advance where you play as Ginta Toramizu, a Tokyo middle school student obsessed with fairy tales who is transported into a magical world called MÄR Heaven. Ginta gains superhuman strength and perfect eyesight upon arrival and must navigate this fantasy realm while collecting ARM cards that function as both weapons and magical spells. The game features top-down exploration, turn-based battles against foes, and a story filled with characters from the source manga/anime such as Ginta himself, his friends, and various MÄR beings. What makes it stand out is the faithful adaptation of the comic's chaotic humor and card-collection system in a portable format, with charming 2D artwork and engaging RPG progression.