Doesn't make sense that the player characters cannot move past another player character. I would understand if we couldn't move past enemies but this shouldn't be the case with allies. Really hinders the whole idea of having a "party" fight together.
This isn't a hard badge it's an impossible one, first because of the quick disappearance of the coins, in certain situation it only takes a computer that makes NO mistakes to get to the coin in time. Having to listen to the music the whole time is also really annoying and increases the difficulty.
By the way don't write Battle Items on items that adds to the maximum HP!! I thought it was a temporary battle item so I just sold them instead of getting the HP or MP!!