This was interesting and I got into it after adjusting to the way things moved. There is no feed back at all when you hit an obstacle or when you go through a portal so for a while I though I wasn't supposed to go through the arches because they were killing me before I realised they were progressing me, and the sudden restart with no sound of visual change when failing a level was very jarring.
I really like how you stay in the centre, and there's a lot you could do with that, but at the point where platforms started going up and down underme, leaving me suspended in the air it felt a bit off. Lot of potential, needs some gamefeel tweeks.