Thanks for the feedback! The last level is definitely a puzzle more than an execution test ;)
I agree about the speed goals on some levels, it was definitely tricky to find the balance sometimes. Although they're only useless if you get to them in the intended way, they could be considered bug abuse prevention in that context!
Regarding stage 14, that was intentional, the puzzle was that you needed to find the right path.
Thanks so much for playing!