Donkey Kong Jr. - (NES) - Full Playthrough
Donkey Kong is back! But now the roles are reversed, as it seems this time Mario has imprisoned Donkey Kong. It's up to his son, Donkey Kong Jr., to rescue his father. DK Jr. is a platformer in the same style as Donkey Kong, but instead of jumping over barrels, your jumping to grab vines. Playing as DK Jr., you can slide down faster by holding only one vine, or climb faster by holding two.
After the fourth level, Jr. rescues his father and Mario, in his only role as antagonist, suffers an inauspicious fate. The game then begins anew at a higher difficulty. These are the four levels of 'Game A'. I was going to include 'Game B' as well, but they're exactly the same, just with a higher difficulty.