So here's new stuff and features:
- catapults with wheels (you can shoot stuff. you can attach portal to box and trow it away, than you can go thou portal);
- wall jump (like every wall jump);
- moving platforms (they can move, they can not to move);
- mass dependent elevators (so if you wanna go up, you have to throw away same boxes/annoying enemies)
- and etc.
is someone interested in alpha demo? :)