I used Firefox to play it, and the mouse cursor drags itself to the bottom right at all times so I had to fight the mouse cursor a bit. I'm not sure if it's a feature or a bug lol but as you noted to use Chrome as other browsers are untested, I thought as I don't have Chrome I'll test it on Firefox (ノ´∀｀)ノ lol
Very cool though, I like puzzle games, the third level was interesting and having the features you mentioned added to it in the future will make a nice fleshed out game experience