Popo and Nana found themselves in 1 of the worst situations you can be when it comes to platforming... they were in a maze with nothing but kaizo blocks. The Ice Climbers weren't accustomed to dealing with this sort of nonsense.
"...whoever thought of putting invisible blocks in spots they don't belong deserves to freeze a painful cold punishment."
"Well bro, what did you expect when we entered a game mode with 'kaizo' in the title?"
"What does it even mean, sis?"
"...You really have no clue about it, do you..."
Alas, smashing their wooden mallets through and using their snowy powers to freeze up the blocks didn't stop them from popping into existence with every step they took, proving that it was the 1 kind of torture that would chill you in the worst way possible. The Ice Climber twins continued their worthless plight in light of it.