75m

75m (also written 75 m) is an unlockable stage in Super Smash Bros. Brawl, a Familiar Stage in, and a Starter Stage in Super Smash Bros. Ultimate. The stage is based on the 75m level of the original arcade version of ; however, it is a bit more reminiscent of the port (in Brawl and for Wii U) rather than the original arcade version, but Ultimate changed the aesthetics of it to match the original arcade version. This stage is playable in 8-Player Smashes in Super Smash Bros. for Wii U.

75m also appears as the starting level in the  Masterpiece.

Stage overview
The stage is a retro stage in the sense that it uses 8-bit graphics to replicate the look of the original game. Unlike Flat Zone and Flat Zone 2, the stage is not completely 2D, as the platforms and ladders all have depth (in Brawl and for Wii U), although this depth can only be seen in Ultimate by manually rotating the camera when paused or during a replay. There are many small platforms at the bottom part of the stage, but there is also a long platform on the top, and several larger platforms on the right. The bottom-most platform (with the bottom part of the two elevators) is in the background, so that players cannot land on it, but fall through it instead. The stage has walk-off blast lines on some of the platforms. Numerous ladders connect some of the platforms, but the ladders next to the Donkey Kong arcade sprite can not be climbed. In the center of the stage, there are two moving elevators with small platforms. The left one travels upward, bringing characters to the long platform on top and the one on the right travels downwards towards the bottom blast line. The platforms cannot be jumped through from above, only from below. 75m is the second largest new stage in Brawl after New Pork City. Masahiro Sakurai has stated that the stage is quite large, but the small platforms and dangers give the stage a cramped feel.

A key part of this stage is the arcade sprite of Donkey Kong (who, as discussed in one of Snake's Codec conversations, is actually a younger ), who sits on the long platform. He normally sits behind the stage in the background, but will sometimes light up and comes into the foreground. When this happens, the stage's usual background music will briefly fade out and play his theme for a few seconds, giving an opportunity for players to react before he attacks. While he is in the foreground, contacting him causes moderate damage and knockback. Four jacks will also bounce in from the left at irregular intervals (for example, Donkey Kong can throw one jack, briefly pause, and then resume throwing the jacks) and fall after they bounce off the long platform, also causing damage and knockback. After a certain amount of time, Donkey Kong will go back into the background.

All items from the original Donkey Kong game return as items in the stage, which are the Trouble Bugs, jacks, the purses, the umbrellas, and the hats. The Trouble Bugs move along the platforms and ladders, and cause fire damage and knockback upon contact. The purses, the umbrellas, and the hats can be picked up if a character touches them, and this has no effect on gameplay. The score in the top left-hand corner increases by 800 each time an item is picked up, but this also has no effect on gameplay.

Gameplay on 75m tends to take place in the upper right-hand corner. This area is much more flat and has fewer gaps than the rest of the level, and is much less prone to random objects flying out and KOing players. While a large stage in terms of blast lines, it tends to feel cramped because of the many small platforms. Also, because the majority of the fighting takes place in the upper right hand corner, the stage tends to feel imbalanced towards that side. In general, it is quite difficult to KO a player off the left or bottom edges, while it is rather easy to do so off the top or right.

While not much has changed in the stage when ported to, the platforms on the right have been changed into regular platforms instead of walk-offs. This makes the platform where Donkey Kong appears the only walk-off on the stage. In addition, several platforms have been changed allowing players to pass through them from above, allowing more mobility in the stage. A platform connected with a ladder can not be passed through however, with the exception of the unclimbable ladders next to Donkey Kong; the elevators can not be passed through from above as well. Furthermore, while Donkey Kong is in the foreground, only one to two jacks at a time will bounce in as opposed to four, reducing the number of active hazards. Donkey Kong still pauses occasionally for a good time before resuming his throwing.

In Ultimate, the camera on 75m will always stay zoomed out (except for events that override the normal camera, such as assist trophies and Final Smashes), and moves laterally only slightly. Also, the design and sound effects have been changed to match its appearance in the original arcade game rather than the NES port.

Ω forms and Battlefield form
In Super Smash Bros. for Wii U, the Ω form features a triple layer platform of girders. Some parts of the original stage can be seen faded in the background. The Retro Donkey Kong will not throw any jumping jacks, and enemies or collectibles appear only in the background.

In Super Smash Bros. Ultimate, the Ω form and Battlefield form are similar to SSB4's Ω form; however, it is now a quadruple layer platform, and they are resized and reshaped to match and, respectively. The three soft platforms of the Battlefield form are thinner versions of girders.

Hazards Off
With hazards off in Ultimate, no Trouble Bugs appear, and Donkey Kong does not come out from the background and throw jacks. The elevator platforms do not move, and instead two stationary semisolid elevator platforms are present in both of the elevator columns. Pauline's hat, purse, and parasol still appear and can still be collected to increase the score.

Origin
Donkey Kong was the first title to feature Mario, then portrayed as a carpenter as opposed to a plumber. In the game, heavily inspired by King Kong and the Popeye cartoon A Dream Walking, he must chase Donkey Kong up the construction site of a skyscraper to rescue Pauline. The location of the game was stated at the time of its release to be real world, however later games have contradicted this with differently named urban areas implied to be one and the same, such as the Metro Kingdom in Super Mario Odyssey and Big Ape City in Donkey Kong Land.

This stage is based on the second level of the game, in which Mario must maneuver through obstacles such as vertically moving platforms, bouncing jacks, and s. If Mario falls from a certain height, gets hit by the jacks, or touches a Fire, he loses a life. Mario also has a chance to earn more points by retrieving Pauline's items in the stage, which include a hat, parasol, and purse. This stage is an accurate recreation of the 75m in the NES conversion of Donkey Kong; though the Ultimate version makes small changes to closer resemble the original arcade version. However, the bottom-most platform is now in the background and cannot be landed on (in addition to jacks only appearing when Donkey Kong is in the foreground, instead of all the time as in the original game).

Tournament legality
Due to the stage's cramped feel, large size, dangerous hazards, generally unusual layout, and overcentralization towards the upper area, 75m has been banned from tournament play, as it is too difficult to play a proper competitive match on.

Glitch
In Brawl, a glitch can occur on 75m playing as If R.O.B. grabs the left ledge of a certain platform near the bottom right of the stage, R.O.B. will be teleported onto the left platform facing to the right.

Update history
 3.1.0
 * 75m's on-screen appearances locations have been changed.

Trivia

 * The DOJO!!'s page on 75m gives the stage's name as "75m" (without a space), and the music track "25m BGM" is formatted without a space, but the stage name in-game has a space (as "75 m"). However, under SI standards, SI units (meters, in this case) should have a space separating the number and the units (representing multiplication), and the stage's name is formatted with a space in the arcade and Game Boy versions of Donkey Kong.
 * This is the only stage in Brawl with no tracks unlockable for its My Music options beyond its original tracks.
 * All three of the songs that play on this stage in Brawl include the 25m theme in some shape or form.
 * Although the stage most closely resembles the arcade version of Donkey Kong (including the appearance of Pauline's hat, which is absent from the NES port), in Brawl and SSB4, all sound effects are taken directly from the NES version of the game. However, Ultimate uses the proper arcade sound effects.
 * The change in visuals and sounds to become more arcade-accurate likely is due to a settlement regarding Ikegami Tsushinki Co LTD., the creators of the original Donkey Kong arcade machine's hardware and code. Due to the conflicting ownership of the original code and legal issues regarding the code's reverse-engineering for Donkey Kong Jr., the arcade version has rarely been rereleased, with the NES version often being used in its place. However, Arcade Archives: Donkey Kong, released in June 2018, 37 years after the original, appears to have settled the matter, hence the changes in 75m to resemble the arcade version.
 * In Super Smash Bros. 4, music from the universe can be played. This is likely because the game Donkey Kong marked the beginning of both Mario and  universes. In addition, Mario himself debuted in and was playable in that game.
 * In Ultimate, the following Assist Trophies can only appear on the Battlefield and Omega forms of this stage: Andross, Kapp'n, and Devil. The Moon and Nikki cannot be summoned on this stage at all, likely due to the dark background. Additionally, Lunala cannot be summoned on this stage.