Junior's Revenge...

Remember in Donkey Kong how Mario fought Papa Donkey Kong?  Well, Mario won.  Now he has Papa locked up like an animal in a cage.  Only you, Donkey Kong Junior, can save Papa.  You have to reach a special key to unlock the cage.  But Mario has other ideas.

As you nimbly climb trees and gracefully swing across vines towards your goal, Mario sends jaw-snapping creatures after you.  You earn extra points by plucking fruit to bonk them.  When you have won your first challenge, another scene appears with even greater obstacles.  And the third level is the most difficult of all.

You can do it!  After all, you're a chimp off the old block.

(credit: Nintendo; excerpt from original game instruction manual)