A Warp Whistle, sometimes called a Magic Whistle, is a rare item from Super Mario Bros. 3. Using it sends Mario (or Luigi) to the Warp Zone. From here, he can skip up from the middle of a world to the start of a later world. Using it in World 1 will allow Mario to warp to World 2, 3, or 4. Using it in a world from 2 through 6 will allow him to warp to World 5, 6, or 7. Using it in World 7 or 8 will allow him to warp to World 8. If a second whistle is used while in the warp zone, then the player is taken directly to the World 8 Pipe.
There are only 3 whistles in the North American/European Super Mario Bros. 3. In the Japanese version of Super Mario Bros. 3, there are 4 whistles, as there is a glitch where one is located in World 5-1.
Obtained by running so the P-Meter is full, and flying up to a secret platform, where there is a door. The players need to press up on the once they have gone as far as they can. They'll teleport to a small room, and a Warp Whistle in a treasure box is inside.
Note: Clearing World 1-Fortress this way will not open its locked door.
Players must defeat the last Boomerang Bro. The players will then obtain a hammer, which must be used to break a block at the top right of the map screen, and go to a secret passage. In the passage, there is a Toad House, which contains three Frog Suits, and a Fire Bro. Defeating the Fire Bro awards the player a whistle.
World 5-1 (Japanese version only)
In the Japanese version of Super Mario Bros. 3, there is a glitch in 5-1 which makes a random item appear at the end of the level. It can be done by flying above the stack of blocks at end of the level. After that, behind the goal, the player will notice glitched graphics. By hitting it from far left corner, the player will either earn five extra lives or a Warp Whistle.
This glitch was removed from the American release, and both American and Japanese releases of Super Mario All-Stars and Super Mario Advance 4: Super Mario Bros. 3 remakes, thus not allowing the player to obtain this Warp Whistle.
References in other media
Names in other languages