the Teal outfit is so cheap, it's a mind game. Nana looks just like Popo, and the opponent gets confused. I was shocked they actually made that.
True, but I suppose it's a gamble... You'd also risk losing track of your character by confusing it with the second Climber. And can you imagine the confusion if there were other sets of Ice Climbers in the same match?
Also, I posted this on another thread too, but
this video confirms that, even though they no longer switch places on the select screen, you can still play with Nana in the lead.
In summary, the colours we have are:
1. Popo in blue, Nana in pink
2. Popo in white with blue gloves, Nana in white with pink gloves
3. Popo in green, Nana in yellow
4. Nana in black, Popo in white
5. Nana in white with teal gloves, Popo in white with teal gloves O.O
6. Nana in red, Popo in white
I'm making a few assumptions here, namely that Nana will be the leading character for the last three combinations: I've yet to see game footage of options 4 and 5, although the Dojo shows an Ice Climber victory screen for 4, and Nana does appear to have switched places with Popo in comparison to victory screens of the regular colours. But it fits the available evidence, and follows the same pattern seen in Melee. And... yeah, options 2 and 5 could see some serious mindgames come into play...