I like it actually. For some reason what comes to mind right away seeing this is that I want to go and try to eat their tails to eat parts of them and for me to grow, and them to get smaller as I keep eating them from their tails until I eat them all up completely, which might increase my score when I do it.
Then if I ate all of them, maybe more of them would come after that which are longer, more difficult, more of them, etc. but I think it may have been very hard to make something so complicated like that in such a short time. If after seeing your game I thought of something like that, I think you have a nice game here actually!