I have caught 3 additional Mortys outside of the tutorial this far. I feel like the difficulty went up pretty quickly, but pushing through because I want in the Morty games! Great game, no crashes or running issues for me.
I do get a little annoyed when I make progress in a dimension and black out to never be able to go back and DESTROY IT. But the random element keeps it fresh.
Klandemann about Rick and Morty: Pocket Mortys, v1.5.2