Cubit

Noughts and Crosses (tic-tac-toe to North Americans) is brought into three dimensions as you play either a friend or the computer to be the first to line up four tiles in a row. Of course, as well as stopping your opponent making lines on one level, you've also got to keep an eye on them making lines that cross all four levels, if you see what I mean. However, this is easier said than done when you're playing the computer – maybe the human brain just isn't capable of visualizing the lines in 3D. It's probably better to play with a friend, although the controls are awkward; you have to press fire quickly twice to place a tile, and it often doesn't work.