The game I started making a couple of weeks ago and which is almost finished isn't a Bitsy one, but it's my first game made in "Pocket Platformer", which quite a few people describe as "the Bitsy of platforming". When my game is finished I'll have some suggestions for Pocket Platformer's dev (as PoPlat is still a work in progress), and for that purpose I'm taking several cues from Bitsy, particularly in regards things that serve story-based games well.
I've always tried to push the limits with Bitsy, using other people's Bitsy Hacks and making whatever edits I need to the HTML, and I'm doing the same thing with PoPlat. It's a totally different type of gameplay, though, so I'm sure I'll continue to make Bitsy games without it needing a platformer mode ;)