Speedups
Speedups are entity tiles that alter the speed of any tees inside of them. Speedup tiles share the same hitbox dimensions as a standard DDRace tile. The behavior of speeders depends on whether it has a max speed value or not.
Max Speed
Speeders without max speed simply add velocity to a tee but won't let a tee go past the maximum horizontal speed) However, speeders with a max speed value often behave differently - in many cases, they allow a tee to perform speed bugs with relatively easy setups.
TODO: Go more in depth.