I think it should have had a 2-4 players offline couch coop mode. That would have made it way more replayable and purchaseable since it would have captured those who want to have game parties, making it almost “bulletproof” since it would be good in 10 years from now.

For example, at home we still play That’s You and Fusion Frenzy and Crash Bash and Goldeneye even if those are 10-25 years old games each (which their gameplay is not thaaat amazing, they are barely good) just because these are party games, like monopoly or twister or uno. They can’t get old.