Tetramine-o

Left and Right arrow keys to move the blocks. Up arrow to rotate. Down arrow to speed up. There are hidden mines you need to find. Look for the darker spots that appear when your block touches a mine. Encase the secret mines with tetrominos to disarm them and discover one of the secret letters for the secret passphrase. We took the secret theme to heart... Type in the secret word and press return. If its right, you win! If its not, try again. That sounds like quite a lot, and it is! Good luck!