I fully agree with shake about the shopmenu thing
People are buying like every item on it and becoming unstoppable and it is actually why a lot of people leave
They die so they leave xD but you can't stop them doing that apart from not buying all the items of the shopmenu
maybe restrict the tombs of health to one every few rounds and have limits on most of the items apart form xp since that is already expensive.
With the Overpowered race
I don't see how you could fix them apart from nerfing them but they are a high level for a reason
Stupid idea but maybe we should enforce a few rules where they have to finish all the races before they go back and play it 24/7 but that's kinda stupid xD