Tosaka means "crest", as in the crest roosters have on their heads.
Tosakatchi has a light peach body, a red head with a white face, and frills atop of his head. He is usually seen with a squiggly mouth.
Tosakatchi can sing beautifully. But since he is so shy, he hides his talent from others. Tosakatchi is a bashful and mysterious Tamagotchi. According to Togetchi in Tamagotchi Connection: Corner Shop 3, he says "Cock-a-doodle-doo" like a rooster. Tosakatchi's own dialogue shows that he often worries about his friends forgetting him and forgetting how to talk from not speaking for so long. He also loves punk music along with pop songs.
He wants to become a rock star when he is older.
On Virtual Pets
Chou Jinsei Enjoy Tamagotchi Plus/Tamagotchi Connection Version 4
Tosakatchi evolves from Gourmetchi or Hinotamatchi if intelligence is the highest skill point when the teen evolves. In addition, on the V4 they must have a total of at least 30 skill points and receive above-average care.
Tamagotchi Music Star
Tosakatchi is obtained on even generations through poor care.
In Video Games
Tamagotchi Connection Corner Shop series
He appears as a possible customer in the shops. He also randomly appears in the park in the third game.
In the Anime
Let's Go Tamagotchi
He appears in the credits sequence Tama-Friends Forever More.