What game do you have in mind?
I note that ABA Games has an experimental Playdate port of the underlying crisp-game-lib the original was built on. It may be that your favourites run already with only a little modification.
In this case, I figured I would spend a couple of hours reimplementing for playdate to see if understanding the original source in detail would help me beat my brother’s high score. Sadly I’m still yet to crack 13,000.