Game: Bejeweled 2
Above: The satisfying explosions are enough to mesmerise you throughout
There's a bloody good reason that Bejeweled sits at number 12 in our list of the 20 most important games of the last decade. It's above the likes of Portal and Bioshock because - and this term is thrown around so much that it's lost most of its meaning now - it's super-addictive. Bejeweled 2 on iPhone even manages to trump the original by including a new one minute mode called Blitz that will refuse to let you go once you're into it. It's that obsessive.
In this drop-down puzzler you have to match up the relevant gems in lines of three or more by touching and swapping them with the one next to it. A combo of three simply removes the gems and more will drop down. Four creates a power gem that explodes and takes out the ones around it and five makes a hyper gem that can take out all colours on the screen that you wish, like so...
Above: The hyper gem in full effect as it wipes out all the purple jewels
There's an insane amount of pull in Bejeweled 2 - even more so than ace puzzlers like Lumines and Tetris. It's ideal for long or short bouts of play, but be warned once you're hooked you'll be seeing the jewel patterns in your sleep. Can you deal with that? Of course you can. Now get involved.
Buy Bejeweled 2 at iTunes now.