TL;DR: A really fun platformer for what it's worth, being a browser-based game and all. Almost every character has a unique trait that can be used to pass through specific tasks and obstacles in different levels, which adds a lot of replayability.

Don't remember much else, but I'd say I recommend playing this if you're going through a Papa's marathon. About the first one not so much, since I don't think I ever played it, but I've heard this is basically the same game but much more polished in every way