Whaletchi (くじらっち Kujiratchi) is an adult stage Tamagotchi that officially debuted on the Tamagotchi Connection Version 2.
Whaletchi appears to be based off a whale, which it where it gets its name. It also has a tail with what appears to be a heart at the end of it.
On Virtual Pets
Whaletchi's data is available but cannot be raised normally, and can only be accessed via debugging.
Tamagotchi Connection Version 2
Whaletchi is obtained on an odd generation by bad care. Its favorite food is popcorn, but it dislikes bananas.
- Whaletchi appears to be a "discarded" character by Bandai Japan as it was never given a Japanese release. The only way to access it in a Japanese version is by debugging a Tamagotchi Plus, suggesting that it was intended to appear on that version, but was scrapped for unknown reasons.