Where do you get the key to unlock wario?

Answer 1

First you must get the key to Mario's room which is in the painting in the door behind Toad in the Mini-game room. Once you have Mario, you must next get Luigi's key which is in the painting in the Haunted house held by Big Boo in the garden. Once you have Luigi & the key to the upper part of the castle that the 2nd Bowser had, look to your right when you get up the pillar. Go through that door & there should be a mirror in front of you. Make sure you're Luigi, grab a power flower in that room & head through the mirror then in Wario's painting. You'll start at the top of the slide. Slide down, but don't worry if you think you're going to fall. Keep going until you stop floating & land on ground with two bullies. Go to your left then turn right. Wait until the platform comes along, jump on it, get off when it reaches the other side. Go right. After that you'll first encounter wind going up, a freezing pool, 5 bullies, & moving blocks. Wait until each block is in front of you each time you land on one so you don't make a mistake. After that, you'll see bars & moving blocks & walls. Go to the moving blocks & walls & climb them to the top, but beware of popping out snowmen. After you're at the top go down the hole. You'll encounter a big Ice-Bully with a big white moustache & a crown known as the boss of the hidden place. Knock him off the platform & he'll make the platform smaller. Knock him off again & he'll make it smaller & it'll crash into the freezing water. Hit him to the edge because he has a better grip, then quickly hit him. He'll give you the key to Wario's room.