Game & Watch Multi Screen: Donkey Kong II

Game & Watch Multi Screen: Donkey Kong II is the fifth game in the fourth (and biggest) series of Game & Watch games published by Nintendo, also known as the Multi Screen Series, consisting of 15 titles.

Essentially a port from Donkey Kong Jr. the arcade game, released one year earlier, this G&W title got the number II at the end of its title instead of "Jr.", to make it feel more like a true "sequel". You play as Junior, Donkey Kong's son, who has to go through the two screens to catch four keys in order to rescue his father. Since Junior can only use one key at a time, he needs to go through the various electric lines, vines and chains, while jumping over traps along the way multiple times. The only difference between Game A and B is that in Game B, enemies on the upper screen don't disappear when you open a lock, making things harder for Junior.