While playing Super Smash Bros. Melee, it was hard to ignore the Ice Climbers (Popo and Nana) who were playable characters that I never heard of. Then a few years later I unlocked their only adventure Ice Climber as an unlockable NES game in Animal Crossing on Gamecube. And I was extremely disappointed.
The game kind plays likes one of their stages in Melee, but more slow and stiff. I don't know if playing co-op would of been any better, but I just was playing alone as Popo.
I guess there was a reason why most Melee players never heard of Ice Climber at first. This was obviously one of Nintendo's lackluster titles. I might give a sequel a shot if they decided to make one (I doubt it) but it's just aged far too badly.