-Now uses arrows instead of coloured blocks. You can still choose any skin.
-Drop speed is now dependent only on how fast the track is - it no longer gets faster as you complete rows
-Number of cleared rows displayed in the scoreboard
-Rebalanced the frequency of each command (left/right/rotate left/rotate right/drop) so that you are never far from any one of them.
-Game should be easier to play now but you still need to be quick thinking to grab every arrow you need without making mistakes

-Changed incoming block colour to white as this works better with some skins.