Really enjoyed the attitude and style- It's certainly addictive. And certainly difficult. I think I gave up around level 17, although I would have been happy to play more.
To be honest, I can't see how it's possible to meet the target times, unless there is a method I'm missing or you later gain something to make this easier.
Enjoyable music and graphics that fit the game, amusing text, interesting puzzles and utterly frustrating. I can see why you'd get so many points for a medal- if you get them at all.
Perhaps a tad too difficult, but as it's meant as a challenge game, that's acceptable. It's a game you can come back to and glare at, but not one I think anyone can 'complete' in a single setting, which isn't a bad thing.
4 stars for the fun, -1 star for the RRRAAAARGHHSPIKESEERGH.