Levels 11 to 20

This post covers levels 11 through 20. All answers are upsidedown so you don't accidentally spoil yourself.

Scroll down slowly so you don't accidentally see an extra hint.

Level 11

Hint 1: Wrong level?

Hint 2: The image name lies.

ANSWER:

suɐd / ƃuᴉʞɔnɟ d/n

 'ƃdɾ˙ƖƖuǝǝɹɔs oʇ ǝɯɐu ǝƃɐɯᴉ ǝƃuɐɥɔ

Level 12

Hint 1: What's a gif?

Hint 2: Make it one then!

Hint 3: What's changing?

ANSWER:

loɹʇuoɔ / ǝʇoɯǝɹ ¿ƃuᴉƃuɐɥɔ s,ʇɐɥʍ ɟᴉƃ˙ oʇ ʇᴉ ǝƃuɐɥɔ ¿ʞɔɐq ǝɹnʇɔᴉd ʎɯ ǝɯ ɟᴉƃ

Level 13
At this point, the game is impossible on Chrome and must be played on Firefox.

Hint 1: The things pop up at a certain location.. why?

Hint 2: They're not all the same direction!

Hint 3: Anagram?

ANSWER:

llǝɥ / lᴉʌǝp

 ˙llǝɥ ¿ǝʌᴉl lᴉʌǝp ǝɥʇ sǝop ǝɹǝɥʍ ˙lᴉʌǝp sllǝds ˙ɯǝɥʇ ǝlqɯɐɹɔsun 'sɹǝʇʇǝl ǝɥʇ ɹoɟ ʞool

Level 14

Hint 1: What language is that?

Hint 2: It's french. "been here before?"

Hint 3: What are you feeling?

Hint 4: "already seen"

ANSWER:

nʌ àɾép sᴉ ɹǝʍsuɐ ǝɥʇ

Level 15

Hint 1: Rows, Columns..

Hint 2: Brackets might be rows?

Hint 3: It's on the keyboard!

ANSWER:

ssǝɔɔɐ / ɯopuɐɹ

suɯnloɔ ʞɹɐɯ sɹɐlnƃǝɹ 'sʍoɹ ʞɹɐɯ sʇǝʞɔɐɹq 'lǝʌǝl ʎʇɹǝʍb

Level 16

Hint 1: Writing the answers down may help you.

Hint 2: What could # mean when seen in those letters?

Hint 3: Hashtags are reverse alphabet.

Hint 4: 1 = 1st letter, 2 = 2nd letter, etc

ANSWER:

ɹǝpɹnɯ / ɯoop

˙ǝɯɐuɹǝsn ˙ʇǝqɐɥdlɐ ǝsɹǝʌǝɹ sᴉ # 'slǝʌǝl ʇsɐd

Level 17

Hint 1: What is it?

Hint 2: You get enough hints from the game.

ANSWER:
ɯʇɥ˙dɯɐl

"Extra" hint: What game is this?

Level 18

Hint 1: What instrument?

Hint 2: You can find the notes.

Hint 3: I can't hear you..

ANSWER:

ɯʇɥ˙ɟɐǝp

Level 19

Hint 1: Remember the alphabet?

Hint 2: No? Here: ABCDEFGHIJKLMNOPQRSTUVWXYZ

Hint 3: Put them back one!

Hint 4: Back one letter.

ANSWER:

ɟɟnʇs / lɐnsnun

Level 20

Hint 1: What font is that?

Hint 2: It's wingdings.

Hint 3: Some are fake wingdings! Ignore them and move on.

ANSWER:
ɹᴉɐɟun / ʎllɐǝɹ

That's it for this set. Next up: 21-30.