Past and Melee Stages
Past Stages and Melee Stages are special designations given to stages returning from previous installments in the Super Smash Bros. series.
In Melee, three Past Stages were available. They are replicas of their Super Smash Bros. counterparts, complete with music and backgrounds. All of these stages must be unlocked, unlike in the Super Smash Bros.. The stages also seem to be slightly larger in size than they were in the original game.
 From Super Smash Bros.
In Brawl, "Past Stages" are named as Melee Stages. These stages now utilize the functions of My Music, like most stages in Brawl. According to the DOJO!!, the stages are arranged so the player can get one from each game world. Only universes with more than one stage in Melee were selected, however. Unlike the Past Stages of Melee, some Melee Stages have had minor edits (which are listed below). Also, every universe represented in the original Super Smash Bros. has a past stage.
 Changes in Super Smash Bros. Melee stages
|Big Blue||Floating platforms and other airborne items except bumpers don't fly away with the stage.|
|Corneria||New sound effects for the flying Arwings and Wolfens, blasts from the Arwings and Wolfens no longer KO but still deal damage.|
|Green Greens||Bomb blocks have much more knockback.|
|Jungle Japes||Characters can now swim in the river, but it will still carry them off-screen, Klaptraps have different properties.|
|Pokémon Stadium||Fireworks in the background look different, windmill's platforms in the water stage have changed and are no longer pass-through, new sound effect from Pokémon Stadium 2 can be heard when the stage is changing.|
|Rainbow Cruise||Floating items like Party Balls no longer fly offscreen, characters can no longer jump through the donut lifts.|
|Temple||Edge near lowest platform can no longer be grabbed.|
|Onett||Warning sign when a car is approaching is much smaller and can hardly be seen, right edge of the roof on the building on the left can not be grabbed, hospital in the background has had its red cross removed, blue house's roof has a small area on the sides where players cannot jump over, cars are much weaker though they can still damage the player.|
|Yoshi's Island||No changes have been made besides reduced size|
It should also be noted that most (if not all) of these stages are smaller compared to the characters than they were in Melee, possibly due to the character models being larger in order to provide more detail. Also, some of the music sounds slightly different than it did in Melee. Furthermore, the Pokémon Trainer gains platforms in the background.