Ice Climbers

Nana & Popo, also known as the Ice Climbers (アイスクライマー Aisu Kuraimā?), are the pair of playable protagonists from the game Ice Climber, released in the pre-Super Mario Bros. era of NES games, as well as the Smash Bros series.

Why They Rock

 * 1) The two represent the NES era of Nintendo's history in the Smash Bros. series, with a new simple yet highly-detailed design that is nearly identical to their original 8-bit counterparts.
 * 2) They are a brother-and-sister duo that are equally skilled and respect one another.
 * 3) They are a dual-controlled pair, making them unique compared to the other fighters in Smash.
 * 4) They played a huge role in Super Smash Bros. Brawl's Subspace Emissary.
 * 5) Their fighting dynamic in Smash forces the player must ensure the safety of not one, but two characters at the same time.
 * 6) The two made a comeback in Super Smash Bros. Ultimate.

Bad Qualities

 * 1) Without one another, they equally will be less effective during fighting.
 * 2) Since they're silent characters in both Smash and their original game, they greatly lack a personality.
 * 3) Though the two were representatives in Smash Melee and Brawl, they did not return in Super Smash Bros. for 3DS/Wii U due to technical difficult with the 3DS.

Trivia

 * The Ice Climbers made their debut appearance in the Super Smash Bros. series, after sixteen years of the release of their original Smash game, Super Smash Bros. Melee.