I remember I've made those walkthroughs for some gaming website (that probably doesn't exist anymore) but I dont remember its name. All 5 games are from GameBoy Advanced.
Available only in Polish language.
Golden Sun 1: Golden Sun.txt.
Lunar Legend: Lunar-v2.txt.
Mega Man Battle Network: MegaMan.txt.
Mega Man Battle Network 2: MegaMan2.txt.
Mega Man Battle Network 3 Blue: MegaMan3.txt.