Great Sidescroller
Graphics: Great- 8-Bit inspired and really fun to see the pixelated world! Some animations are slightly inaccurate but I figure that's not a game breaker
Music/Atmosphere: Great! I love the fact that it does get a time period / sun rotation in this game, and the different music makes the world seem a lot bigger and less... sandboxy
Objectives: There is a clear set of objectives and an unclear way of achieving them, I love that-- some people don't.
All in all I'd argue that this game is essentially what would happen if you could edit levels in an old side scroller (like Captain Comic or something)
I loved it and I like the multiplayer but think PVP is useless.