Happy Happening is a Japanese game development studio. Under commission from Taito

Taito

Taito may mean:*Taito Corporation, a Japanese developer of video game software and arcade hardware*Taito, Tokyo, a special ward located in Tokyo, Japan*Taito, also known as matai, paramount chiefs according to Fa'a Samoa...

, the studio created Bust-A-Move DS

Bust-a-Move DS

Bust-a-Move DS, known as Hippatte Puzzle Bobble in Japan, is a puzzle video game developed by Happy Happening and published by Majesco Games for the Nintendo DS handheld video game console....

 and Bust-A-Move Bash! for the Nintendo DS and Wii systems, respectively. Not to be confused with Bust-A-Move DS

Bust-a-Move DS

Bust-a-Move DS, known as Hippatte Puzzle Bobble in Japan, is a puzzle video game developed by Happy Happening and published by Majesco Games for the Nintendo DS handheld video game console....

, the Japan-only Puzzle Bobble DS was developed by Lancarse.
More recently, they developed The Wild West for Nintendo DS. The game is an action/shooter featuring anthropomorphic animal characters in the old west.