Wikipedia:
Donkey Kong Country: Competition Cartridge.
A very rare version of Donkey Kong Country was used in competitions such as the Nintendo PowerFest '94 and Blockbuster Video World Video Game Championship II (1995). The goal was to get as many points as possible before time ran out. Points could be gained by defeating enemies, throwing barrels, collecting bananas, collecting balloons, and collecting KONG letters. Many finalists in Nintendo's PowerFest tournament were given the cartridge. The carts used in the Blockbuster Video tournament were sold to Nintendo Power magazine subscribers through its Super Power Supplies Catalog in a green plastic case labelled with the Blockbuster championship logo and some game artwork.
Other links:
http://www.rickbruns.com/Games/GamesRareDKC.htm
http://www.youtube.com/watch?v=XASdSRSsem8
As you can read this game was given to players at some Nintendo contests back in the days.
It would be pretty nice if they released it on VC (Wii).
Beat your own highscore or play with friends to see who gets the highest score.
Did you guys know about this game and what are you thoughts about it?