U.K. box:
Tomy Monster Burger (1983, LCD, 4 AA Batteries, Model# ?)
CPU: NEC D1080G 002
A/C Adapter: 6v DC, 200mA (or more), Center Pole Negative
View Manual
This game was released in Japan and the U.K., and is one of 4 different games (6 total including name variations) in the Multicolorlaser 6000 series. These where sold by Tomy and also under the Grandstand label. Their most impressive feature is a multi-colored backlit LCD, which is very impressive looking (and it is backlit by a full-length flourescent light). These games have the best looking LCD screens I've ever seen on ANY handheld game. (The 6 titles in this series are: Tomy's Mr Do! or Mr. Go!, Tomy's Wheelie Crosser or Grandstand's BMX Flyer, Grandstand's Thomas the Tank Engine and Tomy's Monster Burger.) If you want an idea of what the inside of these look like, there are internal pictures of Mr. Go! on the Guts page, the others are similar.
U.K. box:
Do I have this? Yes, Japanese ver, new (this is mine pictured).