This is a really creative take on the genre. I got to about round 48, and the only times I ever missed were when a combination of things made it nearly impossible to keep track of the time, and then 4 times the cat hit the button. So... not at all a fan of the cat.
Crazy how difficult it can be to keep track of time while estimating the extra time needed due to various effects. I think what'll keep me from playing again for now is just the stress and concentration it demands. It's something I'll come back to once a day for a while.