This game has -for me- a severe bug! Each time I click, there's a notable lag following (minimum 2 second). Every time. No exception. I also tried other browsers: the same :O. It's sad it looked like a nice game!
Please, PLEASE, developper, make a confirmation screen after clicking restart. I clicked it many times accidentaly, thinking (and forgotting) that it only restart the current run.
Notice the very clever timer indicating how much (split)seconds is left till the game restarts. For some reason, I love this.
In fact, it will prevent me from clicking and thinking the game's lagging and not restarting promptly.
Definetly needs a save feature! I accidentally quit the page and now I have to start all over.
Not to mention the need of achievments, which would ask ever more for a save feature.
Music too..
Great puzzle game! 5/5 it's challenging
Boss is doable.
Boss is not impossible.
Those who say so should be thrown into a volcano or learn minimum patience and minimum skill.
Now the hard badge, that's a hard one.
Totally puzzling game, we really needed some of these around here!
I can't get past level 10 yet, but we all have to think with functions (sometime inside functions) to "bring the fun back in function" I guess :)