It's a fun concept! I like the theme and the pixel art cat was very cute! It felt a bit too tricky for my taste though, it seemed impossible to avoid all the obstacles, and I wasn't 100% sure which obstacles actually damage you and which ones just slow you down. I think having some more feedback when you take damage would have helped. I found zooming around in the shopping cart was the most fun part. As someone else has already mentioned, I think this could work well in an endless runner format.