I stumbled across this little gem today and it has a super easy yet rewarding premise, you can fold the lines of the world you are in. I really enjoy puzzle games (as most of you know), and so games like this are awesome. I think that so long as an element of fun is added to puzzles, the repetitve nature can be avoided. Portal did this well in Portal by having intriguing dialogue, and Portal 2 added the co-op play which is hard to resist. What do you guys think, are puzzle games fun?