It took me a bit to understand how it works but.. what a great idea :) Very good game! To make the game a bit easier, one possible option is to allow to press a key twice (maybe using green, orange, red pattern in the keys?).
Good job!
Thank you! )
I don't wanted make game hard delibirately, on the contrary i wanted to make game that you can easly understand. Concept of nonrepeating letters itself seems non easy, but nesessary for better gameplay. If I add third color on "keaboard" it maybe could make game too hard to understand. Or not )) Thank for opinion any way.