I was playing it an enjoying it. Then I got to the last level and obviously I was missing a block... The first one. And as you have no level select option I was forced to replay the game all over again. This time I already knew what to do so it was not very fun. I also managed to die for the first time, get teh yellow blocks stuck for the first time and generally I had a really bad time as I just wanted to finish quickly and not have to go through all this again. By the time I got the the real end I was pretty irritated with the game. I could have liked this a lot more if you had a level select. I feel cheated for not being given any clue to that level 1 thingy and then not realise until I completed the whole game I needed it. Please do not use tactics like that to extend gameplay. It was a good game otherwise, even if very simple.