I don’t imagine that actually being trapped between dimensions would be super fun if it, you know, happened to you, but it sure looks cool. Case in point: Mega Man 2.5D.
It’s a Mega Man fan game with two claims to fame: 2.5D graphics ala Paper Mario and co-op starring Mega Man and his better-dressed pal/rival/nemesis, Proto Man. In terms of stages/bosses, it’s a kind of greatest hits collection from past Mega Man games. Here’s a trailer:
Mega Man 2.5D has been in development for eight years—creator Peter Sjostrand and his team released demos here and there—but now it’s finally, properly out. You can grab it for free here.
Bonus points for this excellent riff on the original Mega Man’s notoriously awful box art: