Have you guys done any self-imposed challenges?
Right now, I'm just trying to complete the Level 1 Critical Mode challenge for KH3. The game comes with this option that lets your character stay at Level 1 and gain zero exp. This makes the game a lot harder since enemies can kill you more easily now. Forcing you to learn how to block properly and strategize now that you can't simply button mash your way to victory.
Despite dying a lot, I've been doing pretty well in this run and having fun. Although lately, I temporarily got stuck at Frozen's ice wolf boss since yesterday. (vid related; a player far more skilled than I)
Other than KH3, another series I like to do self-imposed challenges for is Zelda. Namely just minimalist runs where I don't collect any heart containers and keep Link and his gear as weak as possible. The last Zelda I did this for was A Link Between Worlds, where beating the final boss as a fragile Link felt so satisfying.
And besides KH and Zelda, there are likely many more self-imposed challenges out there that I haven't covered upon. Like Buster-only runs in classic Mega Man. Or those Nuzlocke runs in Pokemon games. Etc etc