in general is bad puzzle game with interesting non puzzle elements...
but is really good idea and have potentials of focus more in puzzle
1)it is stupid you must play the totally easy and boring puzzle before the game have any challenge....
i am at the normal and still i find evrytning ridiculous easy
2)it is more stupid that tell you when you make an error it is easy enough like this i do not need hint with out asking them..
(no one like hint and spoilers....)
3)all this level up and allocable staff are annoying and useless
it will better if the have put all this energy to create interesting and different
puzzles and integrate this with level up instead of points upgrades e.g (colorful puzzle and mast unlock the color before./ smaller puzzle create a big picture/puzzle with hidden info for columns you need hint to solve them. /
pyramid shape or other form of non square grids)
p.s. the control is not bad i use laptop and like i don't need the mouse
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Keyboard controls are available from main menu