I liked the idea, the graphics and all that, but the gameplay was frustrating at times. It was pretty tedious, especially in the end "tower" level (that you have to play through TWICE!), jumping over all those spiders and then having to go ALL the way back if you missed ONE jump...I feel like the interesting ideas you were going for were interfered with by the game.
Also, I'm not entirely sure what happened with Tanas. I caused him to go down and hide underground somewhere? By touching his hand? ???