World 6-3 (Super Mario Bros. 2)

World 6-3 is the third level of World 6 in Super Mario Bros. 2.

Layout
There is a short-cut at the very beginning of the level that will take the player directly to Birdo. There is a wall to the left of the top of the ladder with quicksand underneath it. Get up right next to the wall, and let the player sink until just the head is above the quicksand while holding the button to go left. The player should suddenly start moving left. Keep holding left, and start jumping to avoid dying in the quicksand. The player will pass under the wall to reach a door on the other side.

The enemies of level 6-3 include Tweeters, Bob-ombs, Ninjis, and a few Hoopsters; the environment is cave, desert, and sky. Before battling the boss of World 6, the player must defeat a red Birdo with a Mushroom Block and Birdo Eggs. After Birdo is defeated, the player will enter a fight with Tryclyde (Mouser in Super Mario Advance). This level is notable in that no key is found in the fortress, but this is because it was already used in 6-1.