1 button is 3?
This is an amazing game. I used to play tetris a ridiculous amount, causing me to occasionally dream I was playing tetris. This game would have been nearly as addictive except for a couple things that seriously hindered my enjoyment.
While the circularity was tricky, it was very possible, and even the inverted shapes became normal to my perception, I could not get used to the way the buttons didn't work. Pressing control one time flipped the shape anywhere between 1 and 3 times and made it somewhat unpredictable and impossible ultimately. Also, the direction keys occasionally didn't respond, me having to press them 2 times to make it move one square over.
This last thing isn't a complaint, but in the original tetris I was familiar with, the rotation key was the up arrow and it doesn't seem to me that the up arrow is useful in this version, so why not make the up arrow rotate the shape?
Other than this, the worst thing is the inability to turn off the sound.
Also, the text for the title page doesn't all fit within the defined window size neither horizontally nor vertically.
With a bit of clean up, this game could be amazing, almost as revolutionary as the original tetris. I can definitely see why this made the front page.
Thanks for creating this.