(I'm back) In order for lv 21 and above to be of some use, I decided to add "Upgrade Cards". This will allow you to choose what you want to improve, but each card has a limit (that's the downside). They will only appear when you raise lv 21 and above.

Flowey the flower

Health Bar (for monsters) (+ sprites for monsters that I managed to make (3 + hard mode)).

The chances of monsters appearing:

Normal: 80%

Hard mode: 20% (after lvl 10)

Cuphead

Sans at the battle (remastered)

Don't

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title and menu have been updated.

Underfell Sans at the battle