[[quoteright:272:http://static.tvtropes.org/pmwiki/pub/images/B000ERVMI8_01_lg_5689.jpg]]
[[caption-width-right:272:Out of the way! Giant Plumber coming through!]]

->''New Power-Ups. New Moves. New Bosses.\\
Welcome to the new Mushroom Kingdom.''
-->-- '''[[http://mario.nintendo.com/ Official website]] for the DS game'''

''New Super Mario Bros.'' is a {{platform game}} released in 2006 for the NintendoDS, [[RevisitingTheRoots deliberately modeled]] after the side-scrolling games in Creator/{{Nintendo}}'s ''Franchise/SuperMarioBros'' series, but featuring [[SpritePolygonMix polygonal renderings of some characters and objects to give it a 2.5D look]]. It's also the first original side-scroller in the series since 1995's VideoGame/YoshisIsland.

The plot is rather simple. Bowser Jr. kidnaps Princess Peach, and Mario gives chase through eight worlds, each with at least one fortress and one castle. Each fortress ends with a battle with Bowser Jr., who retreats to either another fortress or a castle when defeated; meanwhile, the castles end with a unique boss fight. The castle of World 1 sees Mario confront Bowser, his arch foe and the series' BigBad, in a fight that {{homage}}s the original ''Super Mario Bros.'' Mario runs to the opposite side of the room and pushes a switch, causing the bridge to collapse and Bowser to fall into the lava pit below, reducing him to a skeleton. Before Mario can rescue Peach, Bowser Jr. nabs her and runs off to the next world, [[YourPrincessIsInAnotherCastle which is gonna happen a few more times]].

In addition to the series' usual {{power up}}s, NSMB introduced some new ones. The Mega Mushroom turns Mario into a giant la ''VideoGame/SuperMario64 DS'', allowing for some massive property damage. The Mini Mushroom shrinks Mario to the size of a mouse, enabling him to get through very small passageways and run on water at the expense of [[OneHitPointWonder death in one hit]]. The Blue Koopa Shell allows Mario to protect himself while crouching; when running, he can knock enemies away just like the koopa shells he kicks. Finally, Shell Mario can swim better underwater.

From both a financial and a critical standpoint, the game was a hit, delighting players with its channeling of the series' roots. It eventually gave rise to [[VideoGame/NewSuperMarioBros an entire subseries]] of Mario platformers dedicated to 2D platforming goodness.

!! This game provides examples of:
* AvengingTheVillain: Bowser Jr.
* BackFromTheDead: [[spoiler:Bowser in World 8.]]
* BattleDiscretionShot: In the opening cutscene, Mario takes a short beating from Bowser Jr. offscreen.
* BigBoosHaunt: The Ghost Houses.
* BreakingTheFourthWall: Closing the DS without turning the game off will result in Mario saying "Ba-bye."
** Opening it back up will cause Mario to greet you with "It's-a me!"
* TheChase: Pursuing Bowser Jr.
* CreditsMontage: The top screen shows all the levels you've cleared (even the cannons that you used). In the cases of the towers and castles, it will show the level itself first before the boss, while the final castle shows the level, the boss, and the princess being rescued.
* DamselInDistress: Peach gets kidnapped. [[SarcasmMode Who saw that coming?]]
* DemBones: Dry Bones and [[spoiler:Dry Bowser]].
* DemotedToExtra: [[spoiler:''Bowser'']]. His only appearances ''period'' are [[spoiler: the first and last boss fights]]; otherwise, it's Bowser Jr. and a bunch of [[GiantSpaceFleaFromNowhere Giant Space Fleas from Nowhere]] running the show.
* DualBoss: The final boss is Bowser Jr. and [[spoiler:an enlarged Bowser]].
* FamilyUnfriendlyDeath: The [[http://bowserdeath.ytmnd.com/ apparent demise of Bowser in World 1]] mentioned above might be a little unnerving for some. [[spoiler:He doesn't stay dead, however, as he shows up in [[DemBones skeletal form]] in World 8, and Bowser Jr. revives him properly for the final battle.]]
* GiantSpaceFleaFromNowhere: Most of the game's bosses are original, barring RecurringBoss Bowser Jr. and his father. Then, by World 5, when you're getting used to it after fighting probably around two or three of them, the game throws Petey Piranha at you. THEN you get back the the original bosses again.
* GrimyWater: In the forest levels.
* GimmickLevel: Bowser's Castle in the DS game was this, unlike the one in the Wii game, which was filled with tough platforming.
* GroundPound
* HoistByHisOwnPetard: Can happen to Mario in certain levels if the Mega Mushroom is not used with care. One level is made up of nothing but pipes and the majority of them can be broken with the Mega Mushroom. Break too many of them and you'll fall into the BottomlessPit you've created.
* {{Homage}}: Several, to the original ''VideoGame/SuperMarioBros''. For instance, many sound effects from the original game are intact, such as coin collecting, enemy squishing, and block bumping. In addition, the Mega Mushroom PowerUp is colored just like the Super Mushroom from the first game.
** One of World 7's levels from NSMB is extremely similar to 7-1 from Super Mario Bros. 3.
* InfiniteOneUps: In homage to the original ''VideoGame/SuperMarioBros'', the "Koopa Shell Bounce" trick was shamelessly recreated.
* ItsAllUpstairsFromHere: The point of the tower levels.
* KnightOfCerebus: Bowser. [[spoiler: He falls into lava and his skin is burned off after his first fight with Mario, is in his skeletal form Dry Bowser in the second fight, and is revived but grown larger for the final battle]]
* LavaPit
* TheMerch: Take a look at how much Mario merchandise in recent history is branded with this game's title.
* {{Mordor}}: World 8
* MiniDungeon: As usual for 2D ''Mario'' games, the mid-world Fortress levels, as well as the Ghost Houses.
* MythologyGag: The game starts with a homage to World 1-1 from the first ''VideoGame/SuperMarioBros'', and there is a Bowser battle that can be defeated simply by breaking the bridge and dropping Bowser in the lava (or down a pit ala ''VideoGame/SuperMarioBros3''), replacing the axe with a button.
** Petey Piranha is sleeping before his boss fight and attacks when woken up. His very first appearance was ''VideoGame/SuperMarioSunshine'', and the second fight with him was triggered by waking him up.
** Then there's challenge mode, which is available after you beat the game, and enables RatchetScrolling like the original game.
* TheNewAdventures
* NoEnding: Unlike the Wii game, Mario and Peach are never shown actually leaving Bowser's castle.
* PaintingTheMedium: Underground shortcuts are represented by [[InterfaceScrew moving the top screen to the bottom, and vice versa.]] This also prevents you from using stored items.
* PapaWolf: [[spoiler: Should you defeat his son first in the final battle, [[BerserkButton Bowser will go apeshit]] and barrage the boss lair with a spiral of fireballs.]]
* {{Reconstruction}}: Of the original 2D ''Mario'' sidescrollers.
* SaveThePrincess: That's pretty much the whole plot, folks.
* ShoutOut: Bowser's defeat is very similar to [[VideoGame/{{Metroid}} Crocomire's]].
* SpaceFillingPath: That block train in the second World 8 tower goes an extremely long way around the room in a ping pong path fashion...
* SpringySpores: A lot of levels, beginning with 1-5.
* SuperNotDrowningSkills: Present, despite being absent in the 3D Marios that separated NSMB and its 2D predecessors and the one that separated the Wii version and the DS one.
* SuspendSave: You can only save at castles or by using star coins, though you have the ability to save anywhere on the map after you finish the final boss.
* StockVideogameSettings
** World 1: GreenHillZone
** World 2: ShiftingSandLand
*** BuildLikeAnEgyptian
** World 3: PalmtreePanic
** World 4: JungleJapes
** World 5: SlippySlideyIceWorld
** World 6: DeathMountain
** World 7: BubblyClouds
** World 8: PlanetHeck
*** HalloweenTown
*** LethalLavaLand
* ATwinkleInTheSky: Using a cannon on the map.
* UnexpectedCharacter: If you decide to go through every world in order, then besides Bowser and Bowser Jr., the bosses are all new. In World 5, the boss is ''Petey Piranha''. He's a WarmUpBoss in almost every other game, and is the ''ice world'' boss, which makes it all the more unexpected.
* TheVeryDefinitelyFinalDungeon: The giant-sized Bowser castle at the end of World 8.
* WalkOnWater: With Mini Mario.