Oh no! I'm not sure why you couldn't restart. Perhaps try clicking the back arrow on the dialogue box a few times? That's not really a block, though, it's just the 'stopped time' ending. Time just stays stopped forever.
Yup, only one choice, and yup, I forgot music! XD This was never intended to be a 'serious project' or even to be rated highly. I was going to mess around with some tools and art anyway, but this jam gave me a theme and a deadline, two things this project desperately needed. It's just a bonus that all these awesome people get to see it too!