Well, movement controls actually only take one key at time, but instead it has a system that lets you "slip" into corridors if over a half of the tank in on it if you hold the movement button in the direction of the entrance. Works as intended , but it's over-engineering at it's finest, gotta change it.
At the start you have water above you and ice on the left you were supposed to move through. I guess I accidentally trolled people. Unless you mean you couldn't move at all, which is weird.

Thanks for the review!