Loading... hold tight!
Switch blocks and build lines: it sounds simple but, as sales figures suggest, it's very addictive.
1 minutes 4 seconds
Sometimes we include links to online retail stores. If you click on one and make a purchase we may receive a small commission. For more information, go here.
Read more articles from by visiting the archive page.
Comments for this article are now closed, but please feel free to continue chatting
on the forum!