1-3 1-5

Any% Warpless

Basics

Basic 1-4 Route

The fastest route through the first room is to go along the bottom. Going on top of the ceiling is slower, but a bit safer. If you choose the bottom path, be prepared for a randomly spawning flame at the very end of the first room. A neutral egg as you're jumping into the final platform before the save ring should be fired just in case.
The two main tricks in this level are the key pot trick in the second room and the middle ring skip in the third room.
Make sure you have at least one egg when approaching the key pot and when entering the boss room.

A neat trick featured in this level is the off-screen pot break to get the key quicker. If you're able to hit the pot with an egg while it is still offscreen, it will instantly shatter, removing the need to push the pot off its ledge. Naturally, this requires you to have at least one egg.

If you pre-aim the eggshot you can line up the bottom of the aiming cursor with the ground, as seen in the video to the right. Toss the egg as soon as you land on the final moving platform.

The key will fly in the direction Yoshi is facing, so you want to face away from the pot to have the key fly towards you. Aiming an egg leftward is an easy way to ensure Yoshi is facing left even if he is moving right. Backtonguing the key, as shown in the IL, is tricky but can save about a third of a second.

Jumping off of the mini-Burt in the third room gives you enough height to jump over the middle ring just before the boss door. A single tongue (Y-press) as you pass over the middle of the blue door gives you just about the right amount of slowdown to seamlessly jump off the enemy.

Entering the boss fight with an egg allows for an instant attack after gaining control of Yoshi.

Landing the first egg shot on Burt as quickly as possible can be difficult. If your egg control scheme is set to hasty, spam A at the start of the fight, but stop spamming once you see Yoshi start the egg aiming animation.

If your eggs collide with the far side of Burt, he can be knocked directly at you, risking Yoshi taking damage. This can occur if you fire an egg too soon while his invulnerability period fades. After each egg shot, be prepared to move away from him, or give yourself enough room in case he does get knocked towards you.

The explosion after Burt is defeated is random. Here are 2 of the slowest recorded explosions thus far [1] [2]

Fast warp strat

1-4 in Warps is identical to Warpless until you reach the shy guy pipe next to the locked door in the second room. Enter this pipe.
To do the warp, begin an egg shot facing right as you come into the room from the pipe. Following the timing in the video, hold the egg for a moment and then jump off of the third log and run into the enemy. Baby Mario should go underneath the platform Yoshi was initially on. Quickly jump back across. Jump up into the gap in the ceiling before baby Mario flies into you and and hold the jump button to do a flutter. Baby Mario will return to Yoshi when your star count is on 4, but you will be off-screen and thus warp to 1-1.

Improved star route: [3]
Piranha room comparison: [4]
Alternate fast piranha room: [5]

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