World 2-Haunted House - New Super Mario 2 Guide - IGN

A short time after Boohemoth starts chasing you, you'll find a blue/purple block that moves left and right. Jump on it and wait until it is all the way to

Secret Exits - New Super Mario U Guide - IGN

Super Mario Bros. Wonder: all secret exits

Frosted Glacier Swaying Ghost House - All Star Coins and Secret Exit

World 6 - New Super Mario 2 Guide - IGN

World 2 Star Coins - New Super Mario 2 Guide - IGN

Super Mario Bros. Wonder: all secret exits

New Super Mario Bros. 2: World 6 Ghost House Star Coin Guide & Walkthrough (Nintendo 3DS)

For all of the 100% players what's your final rating of the game? : r/Mario

World 5 - New Super Mario 2 Guide - IGN