Finished all 12 levels
I have no idea why I didn't try this game before, it is really unique and fun! The mechanic of using arrows to activate objects is very intuitive. The puzzles are nice and have a smooth progression, though sometimes the rooms are very visually noisy which made me get confused and take longer in certain rooms. The presentation is clean and I like the level select mood.
I didn't get used to the controls while playing, I always felt like I was fighting against them. Maybe thats because my head is used to the unrestricted movement and camera controls of regular FPS. Puzzle games require restricting the player movement, so I know it is not easy to fine tune the mouse/keys controls.
Sometimes the black unpassable tiles blended in with the rest of the room and it was difficult to notice them. It is not clear why you can't walk over them.
I got stuck in a couple places that required me to restart from the menu.
One small trick that made me orientate myself better was turning corners sideways. It always felt right since the camera turned 90 degrees instead of going from a screen-wide wall to an open space.
I had fun playing this game, I hope you will be able to keep working on it!