The Puzzling Free-to-Play Escape Room, naturally!

Question

^{An entry in Fortnightly Topic Challenge #50: Escape Rooms}

^{Without revealing too much, knowledge of geek culture and/or superb Google skills are required for this puzzle.}

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Coming from an anime convention and looking for something else to do, you and your friends find yourselves in the Puzzling Free-to-Play Escape Room. After scouring the geek-culture-themed room for clues and completing some physical puzzles that can't be replicated on PSE, you are left with five numbered clues in front of you. The door to freedom is locked with a five-letter combination lock; attached to it is a card that says "𝜈, 1, 5, 3, 4". Your phones (ie. Internet resources) are allowed for information gathering and cipher solving, but brute-forcing a cipher is forbidden. What five-letter code will lead you to freedom? Collaboration and partial answers are encouraged, but the one who gets the final code with a reasonable amount of explanation will get the green check.

Hints

1. After a while with not a lot of progress, a voice comes from a speaker in the corner of the room asking, "Do you want a hint?" You accept, and the voice continues:

"Not to worry you, but the note attached to the lock could be a trap."

2. (Bigger hint) Seeing you still working on the first puzzle, the voice goes on:

"It's time to d-d-d-d-decipher!"

3. "If you're stuck on the first puzzle, you can try...

...working on the fourth one; the rebus can be solved independently of the other puzzles."

4. "In addition to the extra information provided in bold for #3 (which really should have been there from the start), something to note for the rebus is that...

...the enumeration of its solution is (4: 4 9). In other words, there is a 4-letter word, then a colon, then a 4-letter word, then a 9-letter word."

5. (Bigger hint since it's been a year) "I'm noticing that the rebus puzzle is taking a lot of time. Speaking of taking, when you take away anything in this rebus...

you will have to do so non-consecutively.

Was that unfair? Maybe, but I mean you have to solve the rest of this escape room that way so whatever. It also makes sense, then, that since you need to approach things in this room in different ways, that...

the number signs in the rebus will also have to be approached in different ways!"

6. "Another note about the rebus: there is more significance to the first entry on the second line than one might think.

What is the arrow pointing at?"

7. "It looks like there hasn't been much progress on the Shingoki....

Before you can solve it (something you actually need to do), you need a way to convert the letters to numbers; all the clues you need to do so are either in Deusovi's partial answer or the rhyme accompanying the puzzle...."

The Clues

1. A version of Egyptian mate
   From head to foot; his name is great
   A king that holds a thousand years
   Embodying our spirit here
   ____ ____

2. Zlkiw inh kctmdue olx mmy (10)
   Zbgf ymoe fbbghm pquw cd fkbfovs (7)
   Pyvbufx gmgkpaq zcr uoz mzmsp urt (9)
   Ecvy yzzmd ntgry un pclusmzqza aspv (4)
   Kien Gstuji ofnp jygle nh xcurwgmr (4)

3. A Shingoki with nothing added.
   Extra letters make it padded.
   Use the second for this third,
   Taking firsts of every word.
   (penpa-edit link here; Shingoki rules and Markdown transcription at the bottom).
   

4. ###

5. AIOLBLLALHLIZNVVUGSCIZCRPYYLKSBVXLZGSWGREMZMJYWQAPIWMERBLYMITWVLPMKMAPBLPVXOMGSCIZBLLNMYAXZWJHTPMWYYUYZBFLCWLLTZELPBIZPSBTHVVPFJIBAIKNMYAX (Whoops!) ZHNKAKKZKGKHYMUUTFRBHYBQOXXKJRAUWKYFRVFQDLYLIXVPZOHVLDQAKXLHSVUKOLJLZOAKOUWNLFRBHYAKKMLXZWYVIGSOLVXXTXYAEKBVKKSYDKOAHYORASGUUOEIHAZHJMLXZW

Shingoki Rules

Adapted from A Shingoki Puzzle. However, it looks like these rules can't be directly applied to this specific Shingoki....

• Draw lines between the dots to form a single loop without crossings or branches.
• The loop should pass through every circled number in the grid.
• For white circles, the loop must pass through in a straight line.
• For black circles, the loop must make a 90-degree turn when passing through them.
• The numbers in the circles show the sum of lengths of the 2 straight lines going out of that circle.

Shingoki Markdown Transcription

🅝	Ⓝ	·	Ⓞ	🅓	·	🅝	·	·	Ⓞ	·	·
·	🅒	·	Ⓡ	🅐	·	🅞	🅐	🅛	·	🅝	·
Ⓞ	·	🅡	·	·	Ⓝ	·	Ⓝ	Ⓞ	🅡	·	·
·	Ⓡ	Ⓞ	·	·	·	🅞	🅛	·	·	·	Ⓢ
🅡	·	·	Ⓝ	·	·	Ⓐ	·	Ⓢ	·	🅐	·
🅔	·	·	·	🅔	·	·	🅝	·	·	🅓	·
·	·	·	Ⓓ	·	🅛	Ⓢ	·	·	🅒	🅓	·
🅛	🅐	·	·	🅛	·	·	🅓	·	·	·	🅓
Ⓞ	·	Ⓝ	·	Ⓞ	·	·	·	·	Ⓞ	Ⓡ	🅢
·	·	🅡	🅢	·	·	·	🅢	·	🅡	·	🅞
·	·	🅐	Ⓡ	·	Ⓝ	🅞	·	Ⓡ	·	Ⓛ	🅢
·	Ⓛ	🅞	·	·	·	Ⓐ	🅓	·	🅛	·	·

Answer 1

Partial answer

Since this has been around for so long, I figured I'd share my progress so far.

^{[NB: I did need to bruteforce the first cipher, and I would've never gotten it without doing that. I also bruteforced the other one, but don't plan to use the information until I figure out how I was supposed to have gotten the key.]}

1.

This appears to be a riddle with answer YUGI MUTO, a character from the anime Yu-Gi-Oh. I am only vaguely familiar with the show, and know there is some Egyptian theming involved in it; I'm not sure what the other references in the poem are.

Decoding this as Vigenere with key YUGIMUTO gives five cryptic clues:

Break out mineral and gem (10)
TOURMALINE*
Fish eggs lining head of lettuce (7)
RO(MAIN)E
Reptile somehow got air after all (9)
ALL + IGATOR*
Sick after taste of disgusting herb (4)
D_ + ILL
East Nevada club leads to jealousy (4)
E+NV+Y

The first letters of these clues' answers spell TRADE; I'm not sure how relevant that is.

The images here appear to be:
- FIAT?
- ??? - a hamster ball

- PERMU (symbol for male in flag of Peru)
- iii, ??? (this is the album Miiike Sn!!!w by the band Miike Snow)
- the nautical flag for D

I have no idea what the remaining images are cluing, or what we're supposed to do with these. The second row almost makes the word PERMUTED, but I don't see a reasonable way to get "TE" from the second image.

I'm not sure what was supposed to give this to us, but decrypting the text with keyword HIE gives the following (with spaces and punctuation added by me):

TAKE THE SHADES FROM CLUES UNIQUE
COUNTERCLOCKWISE FROM THE PEAK
THREE MORE HIDE WITHIN THE CLUES
THE FIRSTS OF ALL FOUR MUST BE USED
(P.S. WHITE SHOULD ONLY BE USED FIRST)

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Some completely wild guesses for 3:

In the Shingoki, the black letters anagram to ANDROCLES / COLANDERS / AND CLOSER, and the white letters anagram to RONALDS/ARNOLDS. Neither of these seems to be productive.
The Shingoki grid has the right dimensions to be dissected into Braille letters, but they don't seem to all fit in the A-Z range.
The counts of the letters in the Shingoki grids aren't particularly enlightening:


In the answers for 2, ROMAINE is a proper subset of TOURMALINE, both of which are isograms. If this is important, I can't figure out why.
The answers are strange enough that there's probably more to them than just their first letters. There are 34 letters in them, and 39 black circles and 27 white circles; these add up to 100... which would be nice if the grid was 10×10, but it's actually 12×12.

Answer 2

Partial answer

I figured out #3:

From the preamble to the shingoki, we can figure out that we need to use the results of the second puzzle for this one, and use the first letters of each. The answers to the clues in #2 are TOURMALINE, ROMAINE, ALLIGATOR, DILL, and ENVY (see Deusovi's answer for the solve there), and the first letters spell TRADE.

If we take each letter in the word TRADE and replace it throughout the shingoki with its corresponding clue number from 1-5 - noting that no Ts appear in the puzzle because it's impossible to have a 1 clue - we can get some useful information. We're also told from the preamble that there are extra letters in the puzzle, so if we remove any letter not in the word TRADE, we end up with something that looks solvable:


This actually doesn't give us a unique solution, but it's pretty clear what the intended solution is supposed to be:


Maybe somebody more familiar with Pokemon can shed some light on how to proceed with the rest of the puzzle.