Cheers Beardy, thanks for playing! Yeah the moving-while-dropping thing caused a LOT of bugs when I tried it initially, and so it was easier to just not allow that rather than to actually fix the problem ;) The levels don't actually get faster - you simply have less moves before the next drop. You could leave it standing for hours and no more blocks would fall until you moved a piece. From level 6 you start to get multiple lines per drop, so it becomes more difficult.