Burners (also known as Rocket Engines and Thrusters), are obstacles found in the Mario series that made their debut in Super Mario Bros. 3 for the Famicom and Nintendo Entertainment System. They are designed similarly to Bill Blasters, but shoot out flames instead of Bullet Bills. The flames blow for a few seconds and then subside, which is the time Mario or Luigi must use to navigate through or around them. Burners can also be attached to walls or ceilings in addition to floors, so their flames can blow in any direction. They are mostly found on Airship and Tank levels.
Super Mario Bros. 3
Burners make their debut appearance in Super Mario Bros. 3, appearing on the Airship and Tank levels. Tanooki Mario can temporarily disable a Burner's flames in Statue Mario form, but only until the next time it shoots out flames. Besides being used on Airship levels, one Burner was shown on one of the tanks in the first Tank level in Dark Land, although it's position (being one of the pipe-cannons) implies that it was meant to be used as a flamethrower.
New Super Mario Bros.
Burners reappear in New Super Mario Bros., serving the exact same function as they did in Super Mario Bros. 3.
Super Mario Galaxy
New Super Mario Bros. Wii
Burners reappear in New Super Mario Bros. Wii. This time, some of them have the ability to rotate 180 degrees, and they shoot out much longer flames.
Super Mario 3D Land
Burners reappear in Super Mario 3D Land, and this time, they emit blue flames. Like in Super Mario Bros. 3, they appear on Airship levels, but also appear on some ground levels, such as World 8-2. They can now be destroyed by using the Statue Leaf to transform into a statue above them, which will destroy them when the statue falls on them.
New Super Mario Bros. 2
New Super Mario Bros. U
Super Mario Maker
Burners reappear in Super Mario Maker. Their default setting is "on", but shaking them turns them off when they appear on-screen.
Mario Kart DS
In Mario Kart DS, Burners appear on the course Airship Fortress. They will burn any racers that come in contact with them, causing them to spin out and lose time. They also appear in a mission where the player has to collect Coins, and if they hit them, they will lose automatically.
Mario Kart 7
Burners reappear in Mario Kart 7 along with the Airship Fortress course. They function the same as in Mario Kart DS, causing racers to spin out and lose time if they hit them.
Mario Kart 8
In Mario Kart 8, Burners make a minor appearance in the course Bowser's Castle on top of the finish line gate.