Mother 3.5 is a heavily modified version of Mother 3 written by Portal-Kombat (t∣b∣c). Although many elements of the classic original remain, there are differences in that the game is 3D instead of 2D (and on the GCN as opposed to the GBA), features a much larger world, different story layout, many added enemies, characters, and PK powers as well as a day/night system.