With it's shiny cute graphics and bright colors Kyodai by Rockifone is a fun distraction once you learn the rules.
The website says "Pair up 2 same genies, which can be connected by a line folded no more than 2 times, to put them away." The company prides itself on simple to play games, but this one sentence is all the documentation users get and that seems too simplistic to me.
Thankfully there is a "Hint" feature which I used liberally as I looked for patterns as to why some matches cleared and others just blinked annoyingly. It took 3 levels for me to grasp what a "folded line" is. (PS: It means that you must be able to connect the two matching pairs with a line that turns no more than twice and is not blocked by another character icon.)
The game is rated for ages 4 and up, but I think that's a bit of a stretch. The small character icons require more dexterity than the average toddler possesses. Also, the rules requires spatial recognition — something that young children are just beginning to understand.
Older kids and tweens will probably enjoy this memory puzzle game for the iPhone and iPod Touch.
Adults can appreciate the challenge for awhile as well. Although, with adults, the issue of icon size becomes a problem again. With my slightly-larger-than-average fingers I had a hard time accurately selecting the right icons. Thankfully I have a stylus for my iphone. But, for those that don't have a stylus, it can be an exercise in frustration.
The game comes with 3 types of music in addition to sound effects. These can be adjusted in the options menu from the main screen. I appreciated the option of lowering the volume of music and effects independently and also the choice to turn down the volume without affecting the level of my ringer. It's an feature I wish more games would include.