This week I include one for a famous genre and two for amusements that pop up again and again in anime and manga.
mahō shōjo (magical girl) 魔法少女
Purinto kurabu (Print Club) プリント倶楽部
UFO Catcher (crane game) UFOキャッチャー
The last two I could not have done without the information in an excellent little book that is just hitting bookstores in the US:
Ashcraft, Brian and Jean Snow
Arcade Mania: The Turbo-Charged World of Japan's Game Centers
Tokyo: Kodansha International, 2008