It's puzzle game with one level.
How to play:
Yeah also couldn't get past the first level, the bit where you have to go through the areas which you can't show with the window are really tricky. Seems to be a bug that when you die and hit says hit any key to reatart this doesn't work for me. I have to reload the whole page. Feel like the window should be a bit bigger and you need to be easier on the difficulty slope. Interesting idea though, and the pixel art is nice. Also playing games in silence always feels so weird,
An admirable attempt at combining two puzzle genres together: tile sliding and mazes. The tile visibility effect is an innovative use of masks (or a custom shader, care to elaborate) and initially impressive even. After a while the novelty wears off and the seams start to show.
Both mechanics are used in an overtly simple way. The maze is time consuming only due to limited visibility, not clever usage of doors, levers, keys, etc. The sliding tiles are there only to provide visibility. They require moving around, but not much thought. The blocking areas are a start, but not enough.
More obstacles and mechanics needed! Ideas:
Do with these ideas whatever you wish.
The graphics are more than adequate. As mentioned by others, the movement controls are slippery and the window dragging at times stiff.
Not bad, could have been better.
Overall: 6 (Above average)
Graphics: 6 (Above average)
Gameplay: 4 (Below average)
Originality: 8 (Great)
Theme: 6 (Above average)
It's very short, but a good use of the theme. Controls are a little slippery, but otherwise a pretty nice little maze game.