You now have more than enough Shinies for your Crow friend. Time to go back to them and make a deal for that fish he promised you.
Little Kitty, Big City – All 7 Sleeping Places Locations – Cat Napper – Performance Guide
For information on previous events in the game, see the first part of my Little Kitty, Big City Walkthrough. Go to Little Kitty, Big City Walkthrough, Part 3 to complete the final part of the game and complete some important cat achievements after you've finished Part 2.
Give 25 Shinies, and you should have a decent amount left. I had 56 total when I gave my Shinies to Crow.
After you've eaten your well-earned fish, you can now climb ivy! You've also gotten the Snack Time cat achievement.