I really like it! Such a humorous little indie game.
I appreciate that the art design and style is consistent between the player and the enemies.
Like they all sorta have a funny looking face, and the bat's having a mustache is pretty cool.
Here's a few suggestions:
-Add more variety to the enemies. You could make larger variants of the other two enemies, as you did with the giant toast. It could even be as small as making some bats brown and some gray.
-More sound effects, there are tons of websites out there that offer free sounds to use for anything you want. You could maybe download the sound effect for a bat, then edit it to sound more 'retro' to better fit the game's style.
For something made in only 72h this is great! Keep at it. You'll be a great Game Dev someday.