Peach's Castle is no longer a stage, but a Smash Musuem Scenic mode hall in Super Smash Bros. Amplified, which players can interact with the Mario franchise collectibles. It closely resembles its design in Super Mario 64, but the basement and the upstairs doors are closed off and the entry to stages have been removed completely. The castle is also graphically updated to the NX's standards. The first Bowser room entry now is part of Cool Cool Mountain's room as a second floor and the door to the Secret Slide Room leads to a room which players can slide into the Jolly Roger Bay entry room.
Bob-omb Model Viewer
The Bob-omb Battlefield battle field room now holds the room for displaying character models of the playable Mario cast and an interactive character, a pink Bob-omb. The pink Bob-omb will welcome you to this viewing and on slight rare occasions will say how peaceful this room now is compared to Bob-omb Battlefield. The room has a magic projector which allows to view a characters moves without actually training or fighting. To activate this projector, simply just interact with the canvas if you want to view the character models.
Cool, Cool History
Cool, Cool Mountain's room now functions as a history room for the Mario franchise you can look. A second floor is accessible from here or where the first Bowser world's door is. The second floor shows Paper Mario content via pictures. The rooms walls will be painted like Cool, Cool Mountain
Jolly Roger Room
This room is where Jolly Roger Bay's entry once was, now it is an aquatic themed trophy room that displays the Mario franchise trophies that are earned. The tanks are the protecting the trophies that players want to show off. Players can view all trophies regardless. The one tank is a Super Mario Bros design and the other is of Super Mario World's design. A blue clothed Toad will introduce this room as the trophy room. It will on slightly rare occasions remark that visitors are never whisked away to another world and is thankful that this isn't the real castle and the magic paintings are gone over there. The Secret Slide room actually is a way to slide out of the hole that granted a 1-up Mushroom in the original game.
This room is where the Miis can use Smash coins to purchase outfits for display on Mii Paza stage or to run around in the Smash Museum. This store only gives out Mario outfits and is located where Mario would enter Whomp's Fortress from. The store will have a banner of a mushroom and the walls will be painted like Whomp's Fortress. A red clothed Toad will manage the store for the Mii outfits and accessories relating to the Mario franchise. The items you can purchase there are as follows:
|Outfit||Cost (in Smash coins)||Description|
|Plumber's Bundle||1,000||Bundles each plumber outfits into one|
|Plumber's Outfit||250 each||Can select Mario, Luigi, Wario, and Waluigi.|
|Royal Bundle||750||Includes all princess style dresses|
|Princess style dresses||250 each||Can select Peach, Daisy, or Rosalina|
|Koopa Bundle||3250||Includes all 13 available Koopa suits|
|Koopa Suit||250 each||Can select all Koopalings, all plain Koopas, Bowser and his son.|
|Paper Bundle||1250||Includes all Paper Stars|
|Paper Stars||250 each||Can select Mr L (Luigi), Parakarry, Count Bleck, Dimentio, Rawk Hawk,|
|Side Story Bundle||750||Includes all Side Story Stars|
|Side Story Stars||250 each||Geno, Fawful, and Prof. E. Gadd|
|Accessory||Price (In Smash Coins)||Description|
|Power Ups Bundle||A bundle of the iconic power ups.|
|Power Up items||The iconic power ups separately|
|Badges and Stickers Bundle||The badges and stickers of the Paper Mario series in a bundle.|
|Badges and Stickers||The badges and stickers available separately|
|Mini Character Bundle||The Mario vs. Donkey minis available in a bundle.|
|Mini Character items||The Mario minis sold separately.|
There are four tracks that players can hear in the hall. It can be changed to the other hall music or available battle tracks with a mushroom shaped jukebox in front of the upstairs door.
|No||Inside Peach's Castle||Original||Koji Kondo||Theme of Peach's Castle when players enter it.||Super Mario 64|
|Yes||Grass Land||Masashi Hamauzu||Koji Kondo||World 1 Map theme remix. It's slow, pseudo-orchestrated and relaxing.||Super Mario Bros. 3|
|No||Title (Super Mario Maker)||Original||Koji Kondo||Title Theme||Super Mario Maker|
|Yes||Title||Takeharu Ishimoto||Koji Kondo||A slower, relaxed take that keeps close to the original.||Super Mario World|
- The Toad in the trophy room is referring to how Mario gathers the Power Stars that are collected in Super Mario 64. The pink Bob-omb in the character model room refers to the same game by mentioning the Bob-omb Battlefield.
- Rosalina's storybook she reads to the Lumas in Super Mario Galaxy and Paper Mario's books are present on the bookshelf in the history room, a callback to their respective games.