I made this game a while ago when I first get my hands into the playdate, but I never post it here. It combines the "shooting" mechanics of Puzzle Bobble with the logic of 2048. It is a simple concept but seems to work fairly OK.
I developed it using the C - API and all the sprites were created using Gimp. For sounds I, created a small tool to embedded them in the source code.
You can download it for free at itch.io: Bifusion by Hegodigames
Clever gameplay concept!