Fun to play bullet heaven. The fact the tamagotchi can end up knocking enemies back towards you adds some nice risk to that. A couple things I felt was missing was an indicator for progress to the next level and some animations/movement for the characters (especially the player). Even something like some basic tweens to make it look like theyre walking w rotations and a bit of movement
Game is very easy in its current state, I even forgot about and never used the dash. Music and graphics are nice though and work well with the gameplay. If you work on it more post jam things that could be added would be things that add more weight to in game actions. E.g. adding some sort of thing happening visually when picking up a pizza as well as a sound effect (that wouldnt be annoying to listen to repeatedly since itll be played a lot). Also things like sound effects for throwing and recalling the tamagotchi
For theme the tamagotchi could be replaced with any object and there would be no meaningful change so the fact its a tamagotchi doesnt really do anything