Interesting twist to be platforming over two separate worlds. The music was fun and lively and I enjoyed the use of filters on the music during the change to the dark world to give it a different feel. Maybe it's just me, but I found it a bit weird using the Q, F and R keys as abilities when my hand is usually on WASD and space. Once you get used to it the dash feels pretty good, it has a nice range and is very responsive.