How to ruin Ice Climber in several easy steps:

Step One: Switch the genre from Platforming to First Person Shooter

Step Two: Transform the Standard Mountain setting into a Post-Ice Age, War-torn City.

Step Three: Give Popo and Nana a makeover (An anime-inspired, punk rock look, perhaps?)

Step Four: Give Popo and Nana an intricate back story involving amnesia, magic, giant battle mechs and a government conspiarcy.

Step Five: Make the enemies Nazi Aliens.

Step Six: Intergrate overly vulgar catch-phrases into Popo & Nana's vocabulary.

Step Seven: Set the game to a terrible Heavy Metal Soundtrack.

Step Eight: Box the game with a uncomfortable mouth-operated peripheral that is vital to game play.

Step Nine: Only inclue one level in the packaged game. Require the player to purchase further levels online for obscene prices.

Next Week: Some other game.