The Tower Arena is the 5th and unlockable arena in the Rodent Rumble mode. It contains some obstacles from the race. Going into the fling spot will make you fly away from the arena (unlike the race, because the arena is a small place. And the race is long and big.)
The only different thing in the arena is the background, which is pink. It's because of an accidental mistake, or a glitch happened.
Obstacles / Enemies Edit
Mace - an enemy / obstacle that only smacks a thing near it.
Fling Spot - a small obstacle that makes you flew away or fly from one point to another.