This looks great on a PC - just tried the demo and it plays very nicely.
I previously tried Giana Sisters but, whilst looking even better relied far too much on timing, which isn't always a good thing.
Might also get Sanctum 2 especially as it's at a pretty reasonable £2.39, which ends in an hour. Aside from the aforementioned games, there is little else I want now that isn't cheap.
Here is the customary video