Game and Watch - Donkey Kong 2 - Multiscreen

Donkey Kong II (1983, JR-55) is a multiscreen Game & Watch video game that is meant to be a successor to the Game & Watch version of Donkey Kong. It was released in 1983. Its model number is JR-55, the exact reason for this being unknown, though it is probably because the player controls Donkey Kong Jr. 

Gameplay
Mario saved the beautiful girl from Donkey Kong, and now Mario has changed Donkey Kong. Donkey Kong Jr braves Snapjaws, sparks and birds, throwing the key which will open Donkey Kong's locks, up to where his Papa is held prisoner. Junior unlocks the locks one at a time. 
   When Junior jumps over a snapjaw or bird, score one point. When a lock is opened, score between 5 and 15 points. When all 4 locks are unlocked, 20 points are awarded. 

Rarity
About 1.25 million games were manufactured, so quite common.

Valuation of Working Model (September 2013)
Boxed with Instructions: £50-£80
Game Only: £30-£40