The game requires WebGL 2.0. Google chrome should work.

Will think about that. 10 minutes could work :)

From nowhere. It's made just for this game.

Don't worry, when this is released as a full product, the levels will be super hard :)

Thanks! :)

A* algorithm. My own implementation.

Hi and thanks! For post processing effects I use this https://github.com/Unity-Technologies/PostProcessing and particles are just simple Unity particles tweaked up a little bit. Especially particle noise added in Unity 5.5 is used a lot.