Level Editor

In the level editor of Super Mario Bros. X, you are only limited to your imagination. There are lots of things to use when making your limitless levels, from plain tiles to a custom boss fight. You can find everything, including all of the Super Mario All Stars games and Super Mario World. From background objects to enemies, you can place/create ANYTHING in your levels. You can make an interesting puzzle level, a short but fun level, a long level in where you can head upwards to the sky, swim around in water levels, fly high in the sky in flight levels, the possibilities are endless! You can choose lots of music for your levels, like the Overworld theme from SMB1! The SMB music isn't fitting on your level? No problem, you can choose Super Mario Brothers music, you can choose Zelda music, heck, you can even use Metroid or Star Fox music! You can also use the level editor to play other people's wonderful levels. You can add custom music or turn the SNES graphics from Super Mario Bros. 1, 2 and 3 into NES graphics to make your level more nostalgic or just for fun.  KOOPA  KINGDUM​ Aside from making levels,you can make an Overworld. Of course, what would be a Mario game without an overworld. You can use either Super Mario Bros. 3 overworld style, or Super Mario World overworld style. You can make all types of ground, pipes connecting one world with another, add background objects like pyramids, rocks, flowers....

Boss Battle
While making boss battles, you can use bosses which are already in the level editor, recolour some bosses and give them speed or make a custom one. Bosses which are already in the editor are: SMB 1 Final Bowser, SMB 2 Wart, Birdo, SMB 3 Larry Koopa, Boom Boom and Bowser. SMW Ludwig Koopa and Metroid's Mother Brain are also included!

Custom powerups
You can make custom powerups. For example, recolor fireflower suit, fireflower balls and a fireflower into blue and you get an 'Ice Flower' powerup.