The other day I was bored, and on a Japanese sim, and I remembered "Hey! Go check out the Atlus sim!" Why? Because I really like Atlus' videogames, so I figured it would be worth a shot. I found a couple of lucky boards in the restaurant near the landing point, and if you leave the shoppign area, and fly around a bit, you'll find a giant UFO Catcher (claw machine)
I'm not joking when I say GIANT, because it is ridiculously HUGE. So big you sit in the little claw, and maneuver it around Directions are in Japanese so I'll just explain it here. First you'll right click the blue UFO, and hit play, this will seat you inside. Use the directional keys to move the UFO around, and then press page down when you're ready to lower. Like with any claw machine, if you take too long it'll lower eventually, so don't take TOO long.
There are a bunch of different prizes to win but be careful! Some of the 'prizes' are different parts of an avatar set, one for Men and the other for Women. I didn't find it that cute, you might, and if you really want to, you can slave for hours to get all of the pieces, but if you're like me? The high fairy in the first picture, is one prize. The Archangel avatar in the second picture? ONE PRIZE. The whole av is one prize, no picking up pieces.

I'd suggest climbing into the machine and walking around to look at the different prizes available before you have at it, plan your attack and things will go much more quickly ^^