I had a lot of fun with this one, between the Earthbound vibes and all the programming jokes. Having the character's sprite merge with defeated enemies was a really good use of the theme.
I agree with other comments that using items out of combat would have made the game much better. In particular using the soda item outside combat would have made much more sense.
My other main complaint was the battle UI. Having the health bar between the attack/items buttons and the list of enemies leads to a lot of unnecessary mouse moving. This is compounded by how small the buttons are, which seems odd given all the empty space below them.
Overall I really liked it and I'm excited to see what else you do in future jams!