neat little game. i like especially your level design. cool graphics. 
would greatly benefit from a few sound effects. maybe next time partner with somebody who can deliver the sound effects and this could be a really good "complete" game.

cool lave effect etc.

Bravo! 

Good art. The question is: does lava always move at the same speed? or does she always catch up with the player?

Great game and level design with intuitive gameplay and polished feel. However, the camera bopping up and down is a bit motion-sickness inducing. Additionally, having some audio would be a step in the right direction.