InPaper Mario: The Thousand-Year Door, the player can decide what color to make Yoshi when he hatches from the Egg. The player can name this Yoshi, and it can be customized in other ways. However,the timing can be tricky, and you will want to make sure you have saved and can reload if necessary.
Baby Yoshi is one of several party members in theremake ofPaper Mario: The Thousand-Year Door. These party members can be temporary or permanent, but they are generally helpful to have around. Baby Yoshi will start out a bit weaker than the others, but as time passes and he gains upgrades he will become very useful in battle.

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How To Unlock Baby Yoshi In Paper Mario
Pull Out Your Paper Airplanes
Baby Yoshi will be found during themain story ofPaper Mario: The Thousand-Year Door. As you are plowing through theranks of the Glitz Pit fight in Chapter 3, you will happen across a hot dog stand and a Yoshi Egg bouncing around. It is being chased by Mr. Hoggle, the owner of the hot dog stand, and it will eventually come to rest on top of the stand.
To reach it, you will have to go to thenearby Juice Bar roof and prepare to glide over to the hot dog standto reach the Yoshi Egg. Use your Paper Airplane to do so, and keep trying until you have succeeded. Once you have landed,Mr. Hoggle will allow you to keep the Yoshi Eggand it will have joined your party. This is the point in time where you will have to start thinking about your color preferences, as detailed below.

However, if you are unconcerned about color, there’s nothing to do now but to continue fighting your way through the ranks of the Glitz Pit with an unhatched Yoshi Egg. After you face the Iron Adonis Brothers, where you areforced to run away or loseas the game will not let you win this fight, you willfind that Baby Yoshi has hatched in the locker room.
You can now name him and he will be able to help in battle which will allow you to beat the Iron Adonis Brothers in Paper Mario the next time you face them.

How To Choose Your Yoshi Color
Timing Is Everything
However, the color of Baby Yoshi inPaper Mario: The Thousand-Year Doorwilldepend on how long the first fight against the Iron Adonis Brothers goes. You will have to be extremely picky about timing to get your preferred color, and the best thing to do is tostart a timer as soon as the Egg is added to your party. This will allow you to choose the color you want, and to see all the colors in action,check out this video by YouTuber GameXplain.
It is also advised that youcreate a save at the point in which you get the Egg, so that you can reload and try again if necessary.
The Timer on Yoshi’s Colorabruptly restarts after 20 minutes, so try to keep an eye on it. If you have trouble doing quick math, you might want to have it count down from 20 and restart it every time it goes off, or use a Stopwatch function to be able to start a new lap timer every 20 minutes. Either way, thecolor is dependent on how much time has passed with seven different options. The table below shows you at what minute mark each color is active.
White
There are discrepancies between experiences with the Blue and Orange colors, with some stating that Blue ends and Orange starts at the11-minute mark. However, that still leaves ample time to pick Blue and Orange as long as you leave the fight during the 9-10 minute mark for Blue, or the 13-15 minute mark for Orange.
You will want torun away from the battle at the timeduring the color activation you want the most. If you do not get the color you want the first time, reload the save, start your timer, and try again. The Black and White colors have the least amount of margin for error, so you will want to be as accurate as possible if you want either of those colors. However, once you get your favorite color, you may bring Yoshi with you into battle tofight your foes inPaper Mario: The Thousand-Year Door.