BSSM Another Story RPG - SNES/SFC
A standard roleplaying game featuring characters from the anime and the manga, and all ten of the major sailor senshi as playable party members. It is set immediately after Sailormoon S.
BSSM R (Sidescroller) - SNES/SFC
A Final Fight style sidescroller game with enemies from the Sailormoon R season. It also features a one on one fighting mode. Chibiusa is a selectable character in the sidescroller mode.
BSSM S: Jougai Rantou! Shuyaku Soudatsusen (Fighting Game) - SNES/SFC
This game is a Street Fighter clone, being a 2D fighting game. Sailor Chibimoon is a playable character.
BSSM S: Kondo wa Puzzle de Oshioikiyo! (Puzzle Game) - SNES/SFC
This is a puzzle game similar to Columns featuring tiny blocks that must be matched, color to color to make them disappear. Chibiusa is a playable character in this one, although she appears to be in her Sailormoon R seifuku.
BSSM S: Kurukkurin (Puzzle Game) - SNES/SFC
Another puzzle game, although this one is set up in a considerably different way and features hearts that must be matched by color in rows and lines to disappear. Collect all three talismans before your opponent to win! Sailor Chibimoon is a playable character.
BSSM SuperS: Zenin Sanka!! Shuyaku Soudatsusen (Fighting Game) - SNES/SFC
Like the S game above, a Street Fighter clone. This one features Super Sailor Chibimoon.
BSSM SuperS: Fuwa Fuwa Panic (Puzzle Game) - SNES/SFC
My favorite of the games. A balloon popping puzzle game featuring Super Sailor Chibimoon.
BSSM Sailor Stars: Fuwa Fuwa Panic 2 (Puzzle Game) - SNES/SFC
The sequel to the above, only featuring Sailor Stars characters. Super Sailor Chibimoon is still playable.
BSSM SuperS: Various Emotion (Fighting Game) - Sega Saturn
The Saturn port of the fighting game developed by Angel. It features some original animation sequences. Super Sailor Chibimoon is playable.
BSSM SuperS: Shin Shuyaku Soudatsusen (Fighting Game) - Playstation
The playstation port of the Angel fighting game. Super Sailor Chibimoon is playable.
BSSM World: Happy Chibiusa, Study! (Edutainment) - Playstation
A hirigana education game featuring Sailor Chibimoon as host. Exciting.
Quiz BSSM: Chiryouku, Tairyoku, Toki no Un (Quiz) - Arcade
An interactive quiz/boardgame style game. Chibiusa is featured, although she is not a playable character.