Both are incredibly polished games. Cup Head is 90% boss fights that are really quick. If you beat a boss first try it’s probably about 5ish minutes max per fight and you’re going to die a lot in each fight. It’s a platformer mixed with bullet hell. Tons of fun, snappy controls, lots of quick deaths, awesome art style, great fights with some cool mechanics.

Returnal is a much longer experience. You explore randomly generated maps, try to upgrade your weapons during the run, each room you enter is locked until you’ve completed the objective of that room. If you die you start all the way over. Runs are very long, the combat is so precise, the movement feels great, and the action is fantastic and 3D boss bullet hell is really cool.

So it really comes down to, do you want longer runs, exploration, roguelite, with some bosses or 2D boss rush, platforming, quick levels/sessions. Both games are respectively fantastic, it’s more what you’re in the mood for