How many levels does Super Mario have? . .

There are 8 major levels, and each level has 3 small levels. The last one is the fire dragon level and the fire-breathing one. The last fire-breathing level is like a maze. If you take the wrong route, you won't be able to see the fire-breathing dragon. You will keep walking until time runs out and you will die. So you have to find the right route, and then you will see the big dragon. Just give birth to the princess,