I've been playing this game from Dyson. I've finished all the regular levels, grandmaster levels, block levels, and half of the Christmas levels. I've also worked out a few of the transporter levels. (Of course, I should be studying.)
My interest in the game was sparked by a recent purchase for which I plunked down all the pennies I'd been saving for a Dyson vacuum. I mean, I was really saving, a, lot, of, pennies: I haven't bought a new (or used) book in a long time. And it was only made possible by a sale at Best Buy.
Now I love to vacuum (seriously), and it actually gets the carpets clean (behold the power of the Dyson 07 "Animal.")
When I was a tyke, it was my job to vacuum, and I hated it. Sometimes when mom asked me to vacuum, I just took the vacuum in the bedroom and turned it on for a few minutes. I always wondered how mom could tell that I hadn't actually moved the vacuum around. Perhaps it was all the stuff on the floor that is invisible to the eyes of little boys.