
Thierry Varem-Sanders
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I was initially frustrated with this puzzle because there were not enough elementary levels to figure out how exactly the arrows work (what positions are on or off). I finally resolved that issue, and I am much more satisfied with the puzzles. They are challenging but not impossible. I would give it 5 stars if they put in more basic levels, or provided a 'training' level where you could test different switches, etc.

Osama Helmy
love the simplicity of it, the background knowledge shared before the stage, and audio and sfx are not super annoying after hearing it for 2 min. too many ads tho. I might just buy it if the stages are worth it.

Michael Corona
Very VERY good! It definitely makes you think, I feel this is a great brain training exercise and very educational as well. Great job developers! :)