This one instantly left a very strong impression on me, the first track especially just completely has the right sound for the type of game you've described and is very distinctive, as well as sounding great! Love the little meowish melodies and all of the rest of it.
All of the other tracks fit similarly well and would definitely be what I wanted and expected to hear if I opened up a game like this.
The jazzy second track in particular definitely has that alley cat feel, which I think really worked.