I agree with many of the reviews below. Top notch game but really needs better explanations. I had 22 'upgrade' points floating above my cat's heads and never knew what they were.
As well the clothing management could be improved with a way to organize them by statistic (ranked in order of power or speed for example) or just reduce the clothing down by removing all redundant clothes that all provide the same bonus.
When you get new clothing it should be highlighted in red or some way so its obvious. Also, it should be clear what the cats are already wearing. It was so annoying trying to add in the one new item I recieved that I basically just ran through the level 5 times then undressed all my cats and redressed them from scratch.
Advancing also gets really slow once you reach the second world. I can literally run through and kill every enemy in world 1 including the Fox Boss, but I get killed by the 3rd bad guy on Level 2. A little too steep of a curve there.
Other than those problems it is still a fun game to play.