I've been working in Picotron to go through this "program your own Puyo Puyo" book Sega published... it's a very fun environment to work in.

You can boot it up, fullscreen it and totally LARP programming... I guess an amiga with nicer color pallettes?

https://www.lexaloffle.com/bbs/?pid=166998#p strawberry_src is a fun editor to use for all of this