Games where they take characters from two or more franchises and push them in to a game together. Yay or nay?
If done well. Professor Layton vs Phoenix Wright was a very good crossover, combining the best elements of both, and bringing back Maya after a long hiatus away from the Wright games.
Kingdom Hearts is one of my all time favorite series. Make of that what you will
Kingdom Hearts is a crossover and it's my favourite game of all time so yeah.
I've played the first Kingdom Hearts so yeah. But I'd love to play others. There's Dissidia I think but its on PS3 or something, and people slag it off so...dunno. There's one I researched once where Cloud and Sephiroth get to fight in an arena. It had a weird name and I forget what its called. And I think there's characters from other games in it so it counts. Its not avaliable in my country anyway, as are most of the cool old games I still haven't played.