There are 72 levels and I solved them all. Tapes is reminiscent of Colorbind from 2010. Colorbind had a different objective and could be insanely difficult. But the ribbon concept first appeared there.
Tapes has some easy levels; others are really tough.
Without a doubt, Tapes makes it on to the List of Best Puzzle Apps of 2014. Reminder: that list will be published in December. Great job Yohei!