Okay, I have found some issues with this very beautiful game.
Firstly, I have found out some of the jumps to be very hard and annoying without abusing game physics and dash mechanic like the two box puzzle in the first level. But I don't mind it that much and I find abusing quite interesting in any game.
On the other hand I didn't like much how by falling into the botomless pit Kattie (if I remember correctly, the Player character) just completes the stage. Maybe I lost something but this choice made me not want to save this little kittens.
But music is great! And visuals are really pretty too. I like your artstyle and I fell in love once again with ginger cats!