Takamaru

Takamaru is the main protagonist of the 1986 game The Mysterious Murasame Castle. In the game, he is a samurai who goes on adventures to defeat enemies and protect his home. He has made a few appearances in the Super Smash Bros. games.

Super Smash Bros. Melee
While Takamaru does not appear in Super Smash Bros. Melee, Sakurai stated that Takamaru was at the very least considered to be a playable character, but the idea was decided against, likely due to a lack of familiarity.

Super Smash Bros. Brawl
Takamaru's only appearance in Super Smash Bros. Brawl is as a sticker.

Super Smash Bros. for Nintendo 3DS / Wii U
In Super Smash Bros. for Nintendo 3DS / Wii U, Takamaru appears as an Assist Trophy who can attack opponents. He is also available as a Mii Fighter costume for those who wish to access the costume themselves.

According to Masahiro Sakurai, he explained that Takamaru was considered once again to be playable in the game. However, similar to how Takamaru was excluded from Melee, Sakurai felt that such a character's popularity was not high enough to make the cut. This resulted in his Assist Trophy role.

Super Smash Bros. Ultimate
In Super Smash Bros. Ultimate, Takamaru reprises his role as an Assist Trophy again.