Conditions that grant you 3 stars should be known. At first I thought it was about time and finishing a level as soon as possible but that was not the case.
Apart from that , a 5/5 game !
this game got 5 stars before I completed it and then I saw that you have made a SURVEY in order to make this game (and yourself as a developer) better !! That is some next level awesomeness here my friend !! If I could I'd give 10 stars !
not so friendly for color-blind people ... I'm not color-blind (or so I think) but I struggled to distinguish blue from purple or yellow from brown and red :/
I'm guessing the fact that the game screen is ... Unproportional to my laptop screen and needs me to zoom out in order to play properly , is totally random ?
some clues were pretty vague (like the 3 are not red) and personally I needed a walkthrough but man ... Absolutely BRILLIANT ! some pixel hunting involved in here but the riddles are excellent . well done !
this hard badge should be in a special category as "Very Hard Badge" and award 40 points or something ... My previous self quit at 1850% , my present self quits at 1822% .