Tamagotchi no Appare! Niji-Venture

'Tamagotchi no Appare! Niji-Venture' (たまごっちのアッパレ！にじべんちゃー) is a Tamagotchi game developed by Jupiter Corporation for the Nintendo DS. It was released only in Japan on March 29th, 2007. The third Tamagotchi entry for the DS, it's also a role-playing game, unlike the Corner Shop games.

*Gotchi King, the ruler of Tamagotchi Planet, has become so angry over the lack of rainbow in the sky that he cracked his shell. Princess Tamako tasks Mametchi, Memetchi, and Kuchipatchi to find the legendary "Rainbow Shards" to restore the rainbow in the sky before Gotchi King becomes too upset.