Also, I only had 40 levels - is there 5 unlockable levels?? 🤔
Viewing post in Skwish for Playdate comments
Sounds like you have the original version 1.0.0 of the game installed. The five extra levels and challenge scores are in the v1.1.0 update!
If you re-download the game from Itch and sideload it again to your Playdate, that should update it. (You may need to delete it from your console to force a new download as the Sideload process can be somewhat unreliable.)