Rolo is a really enjoyable little puzzle game for the iPhone that puts you in control of these little colored balls that need to be put back in order. Each level offers you a new challenge that you'll have to accomplish by moving the balls either vertically or horizontally to match the finished product that is shown on the left of the puzzle screen.
You can pass the different colored Rolos from one line to another by changing directions after each move. It's similar in style to how you would accomplish this on a Rubix Cube, so keep that in mind while playing. The initial levels of the game can be pretty difficult, but as you get further into the game it stops being so simple.
Each puzzle has multiple colored Rolos on it that need to be moved to match what the finished product looks like on the left side of the screen. All puzzles offer at least two colored Rolos, but most of them tend to use three or more colors to make things difficult. The best part about Rolos is the fact that when you finally finish a puzzle you realize that there was a much easier way to accomplish it.
Rolos is available as a lite or full version, so there's really no excuse as to why you shouldn't at least try it. If you become addicted to the game, which is very likely to happen, pick up the full version and keep it on your iPhones games page for when you need a good puzzle game.