I found the timer was a tad too quick and felt a bit unfair, but I really like your take on the theme! Making the main menu and similar themed around digit displays is a really cool idea! If I could change anything, I would love it if there was a reset or self-destruct button, because I found that if I failed to line up a jump I would have to wait around for the timer to end before trying again, and that got frustrating quickly.