In RPG Maker 2000 games the characters move along a 2d grid using the arrow keys. In Dual Orb 2, the characters move along a 2d grid using the arrow keys.
Irrefutable proof! Only RPG Maker 2000 games use the arrow keys for movement.
WHAT IS THIS HERESY?! FOLIAGE YOU LIE YOU LIIIIIEEEEEEEENo, not really. (not sure whether the joke here is that you agree the game is good or that I am advocating a view different from that of the others.)