Very interesting game idea, to throw and call back your tamagotchi, I like that. With the retro music, the nice pixel art and the slightly curved screen, it's the perfect arcade feeling. For me it was relativly easy to win but still a lot fun to play. The game has a lot potential, please keep developing it afterwards.
Adding a XP bar, showing progress of the current level, and a nice sound when you pick up a piece of pizza will raise your game to next level. But I know, time was short.
Very well done. I want more pizza XD