Great but, not enough to characters!

I got through this game in a jiffy, and my goal was to collect ALL of the characters, but theres a problem... There arent any left! It makes me want to delete the app! Its not fun without a goal! Add like mythical creatures or make something like this game, but with FLYING instead! Or SWIMMING. Add fish to this game! Add whatever as long as there are plenty of characters!
~Thanks

TheFluffyBunnies about The Walking Pet