Rush or R is an Attack Type Bit that features a flat tip. The flat tip creates aggressive movement, which results in easy contact with the Xtreme Line (X-Celerator Rail) to perform the Xtreme Dash gimmick. Compared to its predecessor Flat, Rush has a smaller diameter tip, and less gears. This results in less Stamina being used when contact is made with the X Line and an Xtreme Dash occurs. However, a consequence is having a slower Xtreme Dash, although this is intended to increase the frequency of Xtreme Dashes, hence its name "Rush" [Attacks].