I think it's really interesting how different people try to apply crossover logic to different matchups in this game, because Death Note has such clearly defined rules and so any wiggle room comes in in the rules (real or implied) of the other fictional setting.
Like, a character called Frog Detective is going to solve the case and catch the bad guy, probably in the most whimsical way possible! There's no question by the rules of that universe-- rules that are implied just by the character's name and design-- that Frog Detective will win. And so even thrown at a universe with a much more... 'realistic' vibe... Frog Detective did really well!
Similarly, any middle grade story/story with a tween protagonist, they're probably going to end up okay by the end, even if they don't catch the bad guy. The rules of, like, Percy Jackson, don't allow the protagonists to die. So Boy Detectives have a much higher survival rate than the laws of the Death Note setting might warrant on their own.
It's just really neat to see the different logic people use - are the rules of the other story important? Is it just the stated rules of that setting that apply ("this character is immortal/in a time loop"), or are the implicit rules of that genre important too?
((I think we ran a short poll on this a while ago, but it really is interesting to see how people pick and choose the rules of certain genres. I think I saw someone state that, in the case of the Wonder Pets, the Death Note would spontaneously warp into the Meanie Note because it's a bit... Shall we say... Gauche, to have an instant-execution weapon in a show about preschool class pets solving the problems of local small garden creatures.))
