It was thoroughly enjoyable (I found at least 2 pieces I could not get to so I am pretty sure I wasn't even close to finishing it). I did however give it a good 30min of effort. The sound effects were fitting and the background music was subdued enough that not once did I feel like they overstayed their welcome. In fact I would say their quality helped to offset the frustration that was mildly bubbling at the surface as the attempts dragged to their last.
Overall I think you have a really nice game here and if you wanted to you could probably turn it into something much more than it is (but that might destroy the intent and purpose behind it. Only you can say.)
Thank you for making such an enjoyable experience!