Interesting that this Chione Challenge game was made for the GBA console. That's got to be an RPGDX first. The engine was actually somewhat impressive, and if it wasn't slapped together in a couple of hours, I believe this could have been a cool game. As it is, though, you can't die, and you never run out of Santas to kill so it stopped being fun after about one minute of playing.
I am looking forward to whatever RPG comes out of this engine in the future, though.