Puyo Puyo Sun! I still need to get it. I have the first two (1 one MegaDrive, Tsu on Saturn), Fever (DS), and Dr. Robotnik's Mean Bean Machine (on both Genesis and Game Gear).
Anyway, I prefer CRTs. They look nice, don't lag, and work with lightguns. I love lightgun games.
Yeah! I also own Puyo 1 on MegaDrive and Tsu on Saturn too. Gotta love those concert videos in Tsu eh?
Then there's Puyo~n on Dreamcast. Even have Puyo Pop on Neo Geo Pockect Color (which is really a port of Puyo Puyo Tsu; obviously apparent when the system language settings is set to Japanese ^_^) Haven't dabbed into the post Fever generation of games, but I'll probably give Puyo Puyo Tetris a go soon!
Edit: Oh yeah, also own Waku Waku Puyo Puyo Dungeon on the Saturn too! I just need Madou Monogatari Saturn.
And yeah, tried a PS1 lightgun game on my roommate's HD CRT and it was a no go. ^_^;