setting: Dungeon Gauntlet
focus: combat, puzzles, basic rpg stuff
explanation: a version of one one of the 4 main boys summons alternate versions of his friends to complete a prophecy to save the world. dungeon (or dungeons) based on episodes, ie, a zombie+undead based dungeon, a wtfuture-based futurepunk robot dungeon, a clone-based dungeon, an underwater dungeon. possibly collecting relics from each dungeon in order to complete a ritual. things might not be what they seem; originals from this world may not actually be dead. character options: ideally the heroes would be from combat-based worlds, but some sort of rpg-esque system of skills or items (relics obtained?) could be used to support non-combat based characters
setting: Mandatory Tournament
focus: combat, character interaction
explanation: various versions of the same character (likely tords tbhhhhh) are brought to engage in a tournament to find the 'best' version of themself. thrown by an eccentric figure that may or may not be a tord that may or may not be just trying to create a super-army somehow out of their collected tords. alternatively inevitably wants to kill them all to take over their worlds. either way its basically just a dragon ball z tournament where you can have your tords see how they compare to other tords. like a dogshow for tords but with more blood
setting: Pokemon Mystery Dungeon
genre: well its pokemon <3
focus: combat, character interaction, being pokemon <3
explanation: look whether they previously know each other or not i think there could be some really fun activities and options for this one. could brainstorm roles for background characters. could involve mega evolutions. character options: honestly super adaptable. could work from zero and have memory loss, could have them remember being who they were before, could have them just being pokemon in the world and having always been pokemon, like theres just lots of options
explanation: your character is summoned through a portal to a mysterious lab for an interview about their world. things go horribly wrong, and they have to escape the laboratory (which is more of an underground complex than anything else) while nightmarish body horror creatures from the various worlds attempt to break free.
genre: mystery, slice-of-life, sci-fi
focus: character interaction
explanation: the lab isnt always the scariest place on the planet. sometimes its just a morally questionable employer - but the facilities are great! the lab offers all kinds of college-esque programs and the latest scientific marvels to help you be the best you that you can be! (and make money off what you make tyyyy <3)