The game is pretty fun, but two major things stood out:
You need better skill descriptions. I put zero points into STR because HPREGEN wasn't useful at the time, and then I couldn't equip several weapons.
The exhaustion thing is idiotic. Nobody is going to pay to keep playing a crappy flash game when there are literally hundreds of better MMOs to spend cash on.
Coin jumping reminds me of yoshi jumping. On another note, the idea of taking the concept of all these Mario "clones" and creating a game revolving around clones of Mario, well, that's pretty cool.