I love the art! And wow, there’s so many well made menu screens (intro, avatar selector, results). Seriously amazing.
I liked that there are so many ideas and each can go a long way in a possibly future non-gamejam version — some of these I did not get from the description, some feel a bit unbalanced (I was really afraid of the electric hurdles until I hit one :D), but all are interesting a play well after few tries.
The stamina mechanic in the races is magically balanced and feels really good. It would be great to be able to watch the character on the screen while checking the bars (my vision tunelled hard into the bars :D), but it plays well anyway.