20
Nope.
If you mean the Super Mario Bros. from 1985, you answer is thirty-two levels. You see, there are eight worlds, each containg four levels, one being a Bowser Castle.
super Mario bros. has 32 levels.
super Mario bros 3 is ten times better than super Mario bros
complete all the levels duuh
Complete all levels on world one (which is easy).
8
20
Nope.
you play super Mario and all you do is play that is how you make the world of super Mario because you just complete levels
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Complete w7-6
are you asking levels??? well if you are its 8
2-3
I believe so. Get Super Mario All Stars. It's a cartridge for SNES that has four Super Mario games: Super Mario Bros., Super Mario Lost Levels, Super Mario 2, and Super Mario 3.
You can't create levels.