A very solid tetris game! I'm a tetris addict myself so I LOVED this game XD, Didn't really needed the last stand but it's a pretty nice addition for beginner players & to dig yourself out of sticky situations. The piece generation system seems a bit different than regular tetris (sometimes you just never get the line piece), also seems like you can't rotate pieces near the top so if it's over, it's over. The bonus score system was a pretty neat addition tho! Encourages faster plays & rewards faster players. Overall really nice job!
P.S. Just curious, what's the highest score you've seen so far?