I disliked the idea of the crossover, I think the 3rd final crossover of Timmy Turner and Jimmy Neutron sucks, because pretty much everything was set in 2D aka Dimmsdale, California. Not really much 3D aka Retroville, Texas. I felt the idea was a bit bad, I wish there was more of a feud of Jimmy and Timmy fighting over Cindy. It's also terrible that Timmy Turner gave up on his love interest Cindy, I feel like oh man, I'm really sorry that this happened. And both Jimmy and Timmy weren't nice to their friends. And they caused trouble that went onto infinity.