The designers created an entire world with many different environments, each section with different color palettes and varied enemies. It kind of reminds me of the style used in Tim Burton's works. I'd even go as far as to recommend this game on the artwork alone, it's great eyecandy and done well. The creators included local multiplayer too for if you have someone else who wants to tag along. It's a side-scrolling platform game with collections and combo attacks built in. Some checkpoints are really stretched out, adding a bit to the challenge, but perhaps a bit TOO spaced out at times. I think the wrap-up ending animation/story was a little too short and seemed a bit rushed but the last level was a nice combo-gauntlet of previous levels.
*(I can't imagine the time I'd need to finish collecting the 16,000 gems I'm short getting the last achievement so I'm going to let that one and the 'All perfects' ride)* For those of you going for the extras, good luck!