Takamaru appears as an Assist Trophy where he uses his signature Multidirectional Pinwheel Knife Rook Attack and also does several slashes against the opponents. Masahiro Sakurai has stated that Takamaru was at one point considered as a playable character, but was cut because Sakurai thought he wasn't as well-known as other Nintendo characters.
The main character of The Mysterious Murasame Castle. In this game, he dashes and jumps straight to the nearest opponent and shows off his swift sword skills. If he's got a bit of distance, he uses his special ninja techniques, based on the rook and the bishop in Japanese chess, to send projectiles spinning through the air.