Princess Peach's Castle
| Mushroom Kingdom|
Princess Peach's Castle
|Home stage to||Mario (Classic)|
Dr. Mario (for unlocking)
|Tracks available||Princess Peach's Castle|
|Tournament legal (SSBM)|
|Singles||Available / Banned|
|Doubles||Available / Banned|
|Article on Super Mario Wiki||Princess Peach's Castle|
This stage is from Super Mario 64. The overall design of the castle in this stage is very accurate to Princess Peach's castle seen in Super Mario 64; however, the very top spire is gone and the castle itself has been scaled down. Around the castle in Super Mario 64 can be seen a waterfall, some trees, a moat, and fences. This stage has all these features except now there is a flower bed in front of the castle. Behind the castle in Super Mario 64 is a courtyard that is filled with Boos. This courtyard and the Boos are absent in this stage.
In Super Mario World there are these giant Bullet Bills called "Banzai Bills" that would shoot across the screen. Banzai Bills are seen in this stage being shot at the castle. They also dig themselves into the castle and explode, which is not like what they do in Super Mario World. Also in Super Mario World are these blocks that would appear once a switch is hit. The blocks have exclamation points on them. The switches are rounded at the top and has an exclamation point on them. There are also switches with exclamation points that make certain blocks appear in Super Mario 64. When the switch is hit it makes an item box appear. These item boxes also have exclamation points on them. The switches seen in this stage looks like the switches seen in Super Mario 64 without the exclamation points. The item boxes that appear on this stage also look similar to the boxes in Super Mario 64. 
The music for this stage is a blend of both Super Mario Bros.' above and underground theme. 
The level itself is comprised of three parts: The left side, the right side, and the middle. The right and left side are flat platforms with edges and a small floating stand that rises when a character stands on it. The middle section is comprised of two layers; the bottom layer is a risen, sloped platform with another similar platform on top. Occasionally, switches will appear somewhere on the castle. These switches are pressure activated, and come in three different colors: red, blue, and green. Each switch, when activated, makes a block of the same color appear somewhere on the castle. These blocks are called "!" Blocks. Two Red "!" Blocks appear on either side of the castle roof, a sole Blue "!" Block appears at the top of the castle when its respective switch is stepped on, and two Green "!" Blocks appear bunched together on the far left side of the castle, suspended in the air. The blocks release items when one comes in contact with them, granted items are set on during play.
Every one to five minutes, a large Banzai Bill will shoot from the side of the stage in the sky. First there is a loud rumble, and then the bullet appears from a random side of the screen and goes in a slow straight path until it crashes into the castle. After approximately four seconds, it explodes and deals around 30-45 damage with very large knockback and results in a one-hit KO. Last hit can KO opponents at low percentage, if the opponent is being hit by the last hit instead of taking multiple hits. The last hit of the explosion (without taking multiple hits) is avoidable by DI'ing at 0%. The explosion is so strong that most fabrics (like Mario's cape or the flags on the stage) shake when it occurs. A possible tactic is to throw or hit an opponent into the explosion. The Banzai Bill itself also does light damage if touched before it explodes, and it has a similarly soft knockback. It is banned in tournaments due to walls (Shine infinite) and Banzai Bill interference but has been seen in much older tournaments.
 Tournament legality
While initially available as a counterpick, the stage is currently banned in Melee. The stage's permanent walls can allow for infinites, especially from Fox, and the Banzai Bills can easily cause OHKOs. The walls can also promote camping, as they reduce how many angles players can attack each other.
- There is a slight glitch with any AI character on this stage. Very rarely, when a Banzai Bill hits the center tower portion of the stage, the AI will try to head for the opposite edge of the stage to get away from the explosion. In doing so, however, it has been observed on at least one occasion that the character will actually jump into the blast in order to get to the other edge of the stage. This will, as with any incidence of a character caught in a Banzai Bill blast, result in a SD.
Stages in Super Smash Bros. Melee
|New starter stages||Brinstar · Corneria · Fountain of Dreams · Great Bay · Green Greens · Icicle Mountain · Jungle Japes · Kongo Jungle · Mushroom Kingdom · Mute City · Onett · Pokémon Stadium · Princess Peach's Castle · Rainbow Cruise · Temple · Venom · Yoshi's Island · Yoshi's Story|
|New unlockable stages||Battlefield · Big Blue · Brinstar Depths · Final Destination · Flat Zone · Fourside · Mushroom Kingdom II · Poké Floats|
|Returning unlockable stages||Dream Land 64 · Kongo Jungle 64 · Yoshi's Island 64|