Yoylese

This article is about the language. For the species, see Yoyleans.

The full Yoylese alphabet decoded

Yoylese (Endonym: ᖙʏᖙ–]⨝]) is a Yoylean language and the official language of Yoyleland. It is a dialect of spoken English and has only appeared canonically in the Science Museum, on Tennis Ball's Obelisk, and in Grupheetie text.

The first characters to read it were Golf Ball and Tennis Ball in "Welcome Back". The alphabet was officially named in the Battle for Dream Island: Official Character Guide, where a page states, "Golf Ball is capable of deciphering the ancient lettering known as Yoylese."

However, skyscrapers and buildings constructed before Yoyle City's abandonment display Latin writing on their signs, suggesting that the Yoylese alphabet either fell out of use before Yoyleland’s decline or was used interchangeably with Latin.

The alphabet first appeared in IDFB inside the Science Museum, where it was displayed on a sign naming the museum, as well as on labels for various artifacts. It was also seen above the floor number sign and on the Wall Teleporter instructions. The Obelisk also features Yoylese inscriptions spelling "Tennis Ball," and Grupheetie is written in Yoylese in BFB.

Alphabet

Below is a list of all the characters in the Yoylese alphabet. The script has been deciphered based on the Yoylese labels seen in the Science Museum and their corresponding objects. It's important to note that the letters J, Q, X, and Z have not appeared in the show.

Additionally, it was discovered that the BFB Grupheetie text was written in Yoylese, which read "⧖andalism." This revealed that the symbol ⧖ represents the letter V. The remaining four missing letters were later revealed in the IDFB 1 FLA files.

Symbol	Letter	Unicode approximation
	A	⊸
	B	𐊀
	C	∇
	D	Z
	E	]
	F	И
	G	ᖚ
	H	そ
	I	ꕈ
	J	𐒄
	K	ᖘ
	L	–
	M	[
	N	⅄
	O	Y
	P	π
	Q	ꘜ
	R	ᨉ
	S	⨝
	T	ᖗ
	U	⊣
	V	⧖
	W	|
	X	H
	Y	ᖙ
	Z	ʘ

Resources

Yoylese Translator

Gallery

Yoylese above the Science Museum sign reading "Insight Hallway".

Yoylese reading "Shield" under the helmet, "Biscuit" under the cookie, "Transit" under the wall teleporter, "Memory" under the neuron, "Theft" under the blood, and "Tomb" under the Pirate Portal Cube.

Yoylese above the floor sign reading "Displays".

Tennis Ball reading instructions: "It can teleport anybody through a wall of up to 6 inches in width. But it can only teleport one person at a time". The yoylese reads "flnn cllhplt vpllky".

Tennis Ball reading instructions: "Allows you to teleport through walls of up to 12 inches. But it will take several weeks to charge up for such an extreme energy usage, reading "risky" in yoylese on the right, and "apparatus duties" on the left (although it is hard to read, and backwards.)

Decoded.

The full Yoylese alphabet key, found in the IDFB 1 flas.

Tennis Ball's prize obelisk in "Respect to the Wicked", with Yoylese written on it spelling out "TENNIS BALL"

Yoyleland
Locations	Aerospace Manufacturing Plant, Evil Here Hotel, Grotato Farm, New & Improved Supershop, Science Museum, Weak Trembling Fortress, Yoyle City, List of buildings in Yoyle City, Yoyleland, Yoyle Mountain, Yoyle Tower, Yoyle Woodland
Items	Leafy's Map, Yoyleberry, Yoylecake, Yoyle Chess, Yoylite, Yoyleseeds, Yoylestew
Others	Noctiluca yoylean, Yoyle Metal, Yoyleans
Languages	Yoylese, Yoyle Dance