It's not hard... as long as you don't run into a window /below/ your current height, or a bomb landing just after you've jumped off the previous building, or... any one of a load of really nasty or impossible-to-escape-from situations. But, other than that, a really nice, stylish little game. I love the artwork, and the details.
Got to agree that a combination of bugs and bad design really let down what would otherwise have been an interesting and enjoyable game. Seemingly random mutation and spawn limits on level-up, for starters, is a terrible idea when coupled with a levelling system that takes longer and longer regardless of how big you actually are.
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