“Bee, bop, bip!”
Mametchi appears in the crossover Mario game Mario Kart Arcade GP 2 as a playable character in light of Namco's recent merge with Bandai. In this game, Mametchi is a speed type character like Ms. Pac-Man and Toad. Three of Mametchi's special items he can obtain during gameplay is a Mame Block, a Bagubagutchi, or a Chipi Syrup.
In the typical Tamagotchi virtual pets, Mametchi speaks his own language – Tamagotchi. He uses words such as 'bee', 'bop' and 'bip'. The sounds that he emits make reference to the beeping sounds that the Tamagotchi devices make whenever the player is pressing on the buttons, which are referenced in Mario Kart Arcade GP 2. Not all Tamagotchi characters speak the same language though, as a common child character known as Kuribotchi sounds like 'ba bu ba bu'.
Not all Tamagotchi media depicts Mametchi speaking the Tamagotchi speech either. An example is the Tamagotchi! anime TV series, which depicts Mametchi and the other Tamagotchi characters speaking the human language.
Mario Kart Arcade GP 2 Quotes