I've noticed that there are a couple things regarding the PMA leaderboards that could be changed. They are as follows:

1. Add NTSC-J as a region for the game since the game was released in Japan.
2. Add GBP (Gameboy Player) as a console. It's technically the piece of hardware some people play on and should be added as a choice when submitting
3. Clarify in the Arrangement rules that the difficulty settings cannot be modified and all runs must be done on default difficulty, i.e. normal, 3 lives, extra life at 40K pts.