...t swallowing him. Fly up to find a secret area/key exit.

After Star World #4 take the star exit under it on the map. This will take you to the front door of Bowser's castle. Complete this last stage and congratulate yourself on beating the game in record time/in 12 stages.

To reiterate the 12 stages are
1.) Yoshi's Island 2
2.) Yoshi's Island 3
3.) Yoshi's Island 4
4.) Iggy's castle
5.) Donut Plain 1
6.) Donut secret 1
7.) Donut secret House 1
8.) Star World 1
9.) Star World 2
10.) Star World 3
11.) Star World 4
12.) Bowser's castle (front door)

This is the fastest way of beating Super Mario World (snes).

Rj S Yoga Adventures Dvd For Kids