I just played and thought the concept of making a platformer on RPG Maker was pretty cool too! I tried, but couldn't get the map to feel right for the game. I think you've done a greater job than me at accomplishing that, but feel like there could have been more challenge(like having Rand constantly run, rather than being still). I feel like you can try making something in Flash or another program to more closely resemble the controls you're looking for. Other than that, I think the game has a nice idea that can be expanded much further.
As another contender, I would like for you to try playing my game too! Any comments on what to improve are welcome. Have a great day!