| Mario Bros|
|Home stage to||R.O.B. (Classic, All-Star)|
Mario and Luigi (Event Match)
|Tournament legal (SSBB)|
The Mario Bros. stage appears in Super Smash Bros. Brawl and is based on the arcade game of the same name. The versus mode level in Super Mario Bros. 3 for the Nintendo Entertainment System (NES) was also designed after this game.
Due to the fact that this stage has narrow KO zones, it is hard to score a normal KO. Sakurai himself said, "Speaking frankly, this stage throws all the basic rules of Smash out the window!" The best way to KO someone is to hit a Shellcreeper or a Sidestepper from below (through the floor) or attack one, pick it up, and throw it at someone before you can get a KO.
A POW block appears on the stage. Jumping into it or attacking it will result in a hit on every shellcreeper and sidestepper on the ground as well as bouncing every character on the ground upwards. It takes two hits on a sidestepper to knock them over, and one hit to do so with a shellcreeper. Hitting a downed enemy results in it getting back up. Also, the color of a creature relates to speed and power of the creature. Original colors are the slowest and weakest, a blue Sidestepper and a purple Shellcreeper are faster, and a purple Sidestepper and a red Shellcreeper are the fastest and strongest.
The strongest hazard of all is a large flame which occasionally appears from either side and bounces along the bottom of the stage. It deals a large amount of fire-type damage and a ridiculous amount of knockback whenever a character touches it, usually KOing them. Shortly after hitting a character, the flame will disappear.
The presence of the Shellcreepers, Sidesteppers, and the flame, as well as the size of the stage, the fixed camera, the ability to chaingrab someone off the side of the stage, and the lack of both passable platforms and a lower blast line results in this stage being banned in most tournaments (a fate shared by seven other Mario-related stages [out of the 12 in Brawl] each to some extent, despite that series being Nintendo's flagship franchise).
- Mario Bros.
- Famicom Medley
- Power-Up Music
- Douchuumen (Nazo no Murasamejo)
Songs in bold must be unlocked
This stage is based off of the first two levels of the arcade game Mario Bros. In Mario Bros. there are these turtle enemies called "Shellcreepers" and crab enemies called "Sidesteppers"; however, the Sidesteppers don't appear in the game until level four. In Mario Bros. Shellcreepers and Sidesteppers would come out of the top pipes and go in the bottom pipes. In this stage in Brawl this is still true. In Mario Bros. the player has to jump to hit Shellcreepers and Sidersteppers from underneath the platform, after which the player would have to kick them from the top of the screen. In this stage this is retained and the enemies can get kicked off the stage, but not in the same manner as in Mario Bros. and the player can also hit the enemies from on top the same platforms as the enemies are on. If the player in Mario Bros. doesn't defeat the enemy in time the enemy would simply get back up, change color, and go faster. This is still true in this stage. Also the Mario Bros. worked was that if the player or the enemy were to walk of the side of the screen they would appear on the opposite side. Obviously due to the nature of the Smash Bros. games this could not be true for the players, but the enemies are still able to do so.
Mario Bros. was also a two player game where the two players could either work together or battle each other (which involved trying to get the highest score). In Mario Bros. if one of the players were to hit his or her opponent from under the platform the opponent would just go upward a little bit. In this stage in Brawl this is retained. If the player in Mario Bros. has trouble beating a level he or she has a choice to jump and hit the POW Block. The POW Block stops the enemies and the player has to try and go around to knock the enemies off the stage. In two player mode the POW Block sends the other player upward a little bit also. In this stage both of those are retained. As the player gets further into Mario Bros. there would be these red and green fireballs that would go across the stage. The red fireballs bounces off the ground as it goes by, while th green ones don't succumb to gravity. This stage has only the green fireball, but the green fireballs still don't succumb to gravity.
Clear Event 19: Wario Bros..
- Even though this is the original Mario Bros. stage, it is home to R.O.B. in All-Star mode, due to the fact that there is no stage created specifically for him, and a medley of songs from the two NES/Famicom games that used R.O.B. (Gyromite and Stack-Up, though only the former is mentioned in the song title) is available in this stage. When this stage isn't unlocked, Delfino Plaza is R.O.B.'s home stage. Of note, R.O.B. also appeared as a playable character in a recent Mario game, Mario Kart DS, wherein he is unlockable, just like his appearance in Brawl.
- All the songs on the stage are derived from at least one NES/Famicom game. The Mario Bros. song opens with the NES version of the Mario Bros. "Game Start" jingle (actually Mozart's Eine kleine Nachtmusik) while the rest of the song is newly recorded, as is the aforementioned Gyromite/Stack-Up medley. The other three songs are all direct rips from NES/Famicom games (Famicom Medley is exactly that - a medley of original songs from some of that system's games, the Power-Up Music is from when one acquires a Golden Hammer in Wrecking Crew, and Douchuumen (Nazo no Murasamejo) is the main theme from the Japan-only game Nazo no Murasamejo). This may also have to do with the fact that this is R.O.B.'s home stage, as he was originally an accessory for the NES/Famicom.
- Ironically, despite being R.O.B.'s home stage, Gyromite is not available right after the stage is unlocked if the song has not been unlocked beforehand. The song itself must be unlocked by collecting a CD.
- This stage can be classified as one of the easiest to be KO'd upon because the stage-generated enemies alone can KO a stationary character.
- On most stages, the camera will zoom in and out during gameplay depending on how close or far the characters are from each other. Mario Bros. and Flat Zone 2 are exceptions to this rule; the camera stays in a fixed position to give a view of the entire stage.
- Interestingly, two enemies, the Fighter Fly and the Freezie, do not appear on this stage. Freezies, however, appear as items, which is probably the reason why it doesn't appear as a stage hazard. It is not known why the Fighter Flies did not appear, though.
- In the Mario Bros. game, the sides of the stage "wrapped," allowing characters to exit on one side and re-enter on the other side. This feature was removed in Brawl to allow greater ability to KO opponents. Shell Creepers and Sidesteppers, however, are able to use this function and appear on the opposite side of the stage when they reach the edge of it.
- While this stage is based off of Phase 1 of Mario Bros., Sidesteppers didn't appear on that level; only Shellcreepers did.
- Along with 75m, it is the only stage which is based off of an arcade game. 75m also shares the same fate that Mario Bros. had regarding use in competitive play, being banned.
- There is a Pink Sidestepper that will appear and go at such high speeds it is almost impossible to dodge, as well as the Purple Shellcreeper, the Green Fireballs, and the Blue Sidesteppers, which makes KOing hard for other players when it appears.