That's like...my entire primary school and secondary school memory. Tetris games kinda filled my childhood LOL. I still remember the days playing it on tetrisfriends.com in the school's computer lab when teachers aren't noticing, short intense bursts of fun that we can never forget. Too bad I didn't get the chance to play it on those Gameboys or dedicated little devices, I was born a little late for them :3
The satisfying moment when hitting a perfect clear is just too good, it feels even better than getting pentakills in MOBAs. Probably I should go on to the site again to play for a few matches, or pat the dust off my Nullpomino client and have fun :D