FIRE EMBLEM 2003
Like Advance Wars, Fire Emblem was already an established franchise in Japan, with this particular GBA game being the second title to be released on the system, and the seventh overall. while it looks fundamentally very similar to Advance Wars, it features numerous different mechanics including a weapon triangle system and permadeath (which makes the game very challenging if you want to complete it with all the original heroes). Characters can also be upgraded once a specific level is achieved and weapons slowly erode over time. it now fetches a pretty penny online.