I've never really done an iceberg before, so it's probably going to have some things out of order and things that probably don't belong in it, especially in level 1. It seems like level 1 of the iceberg tends to be common knowledge type stuff, and then towards the bottom, it gets into sort of urban legend territory. My memory is only decent, so hopefully, I don't have misinformation here. Sorry in advance for the mess.
Level 1
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FFR Standalone Player
Adobe Flash Cancelled
FFR in-browser
FCs
Secret Songs
FFR Store
Skill Tokens
Tokens
Stepmania
FFR Discord
FFR Wiki
Tournaments
AAAs
Mechanics: Jacks
Technique: Quadmashing
Mashing for FCs
Settings: Callibration
"Amazing" accuracy
White Notes
Replays
Mechanics: Jumpstreams
Mechanics: Hands/Quads
Hardware issue: Anti-alias ghosting
Hardware issue: Input lag
Old Song List
Furries on FFR
Gender: Nada
Data Breaches
Revised Tier Points
Tier Points
TWG
The FFR Perfect Project
OWA
Legacy Songs
Live-step files (Terror from Beyond, Story of Snowman and Sunshine Girl)
Background Videos
Background Images
D8
Veteran Status
Speedmod AAAs
Settings: Scroll: Split/Split-Alt/Plus
Synthlight
Song Submission
Settings: Mirror Mode
Song: PWND!
AAA or die
Level 2
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Lapfox Trax: Renard / The Quick Brown Fox / Mayhem / Jackal Queenston / The Queenstons / NegaRen / Furries in a Blender / Rotteen / Adraen / Darius / Kitsune^2 / Klippa / Sonitus Vir
FFR Merch
Song: Vertex Beta vROFL
User Groups
Song Artist Profiles
OT Sandbagging drama
RATO AAA
Party 4U v1
FFR Halloween Banner Contests
File conversion bug / Frame Fixes
Manual score submission
Adding of silence to the start of songs
Passing of site ownership
Spin It Up
Forum Awards
The Gambling Hall
Song Title Fixes (The Wises(t) Were Wrong)
Custom Engines
Public Batches
Token Leaderboards
Dance 2
Level 3
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"Funk" as a placeholder
Velocity Engine
Top Daily, All Time Statistics over 1 Billion
Difficulty Tiers Update
Secret Tokens
Countless bot accounts
Song Removal: CAPTAIN JACK (GRANDALE REMIX)
Suspicious Scores Thread
Artist removal: Rainbowdragoneyes
FFR Chat
D7
*Whimper Wall*
R2 Engine
Avg-Miss Bug
Arch0wl
Mechanics: Cameljacks
Support Tokens
Illegal Technique: Double-setup
jewpinthethird / The Fat's Sabobah
Whether or not Mr. Rubix cheated (Death Piano AAA)
FFR Blackout of 2009
Score system changes (combo score nerf)
Song switch: Secret Zombie Room (Bumped to Legacy by La Luna Caida)
Addition of Legacy genre
Renard sexual abuse scandal
FFR Trading Card Game
FFR RPG
Level 4
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Missing Super Mario Bros. section in "The Games We Played Pt. #"
Controversial discussions in forums
Inaccurate artist names (eXcluded to The Offbeats, championanwar to Anwar Louis, Richee to Switchee, etc.)
Calendar / birthdays
Scavenger Hunts
FFR chat: I can haz bucket? / BUZZ!
Bug: 0-framers
Song removal: Chrono Cross / FF7 Battle
Multiplayer Levels
FFR Simfile Database
Bug: Simfile Database glitch similar to avg-misses. Worse when at slower note speeds.
FFR Song Widgets
FFR Vid Chat
Song replacement: OMGWTFT0k3N (Winning)
Song removal: A Baleful Aura in the Graveyard of Broken Gears
Song replacement: Undiscovered Colors
Song removal: Multiple versions of songs (Light/Standard/Heavy)
Song: OMGWTFT0k3N (Winning)
Song: The Wises Were Wrong
Late 2000s removals: 3OH!3, All Shall Perish, All Time Low, Amber Pacific, Anarbor, Angels and Airwaves, Ankla, *As I Lay Dying (3), Ashlee Simpson, Automatic Loveletter, Bandits of the Acoustic Revolution, Basshunter, Blackberry Smoke, Blinded Black, The Cab, Caiden Lee, *Celldweller (3), Christian George, Crush, A Cursive Memory, Danger Radio, The Dangerous Summer, Dashboard Confessional, Dejo & Bon, Dust Galaxy, Emanuel, Five Finger Death Punch, Forever in a Day, Forever the Sickest Kids, The Forgotten Archetype, Four Letter Lie, Freestate, *Freezepop (2), From Autumn to Ashes, Gary Allen, Hatebreed, InnerPartySystem, I Hate Sally, I Set My Friends On Fire, Jae-P, Jakob Dylan, John 5, Kaddisfly, *Kelly Rowland (1), Knights in Paris, Know Lyfe, KO the Legend, Low on Air, LoveHateHero, lvl, Mary J. Blige, Medicated Kisses, Menudo, Metallica, Mika, Monty Are I, Name, My Chemical Romance, NLT, Nonpoint, The Reign of Kindo, Rivers Cuomo, Savvy and Mandy, See You Next Tuesday, Skindred, stargroup100, Subkulture, Supe, teranoid, These Silhouettes, Thirteen Yards to Victory, Tim Halbert, The Ting Tings, Tysen, *Wheatus (1), Your Vegas, Yours Truly
Song: Nyan Cat
nois-o-re marriage proposal (Miles Away)
Scores Purge of 2015
50 year old accounts
FFR "Did you miss me?" shirt
Velocity Engine songs (The Wises Were Wrong (Many custom effects), OMGWTFT0k3N (Note Shuffle))
Level 5
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Pros' alternate accounts on leaderboards
Artist: 5 OC Remixers / 7 OCReMixers
Lost Statistics (from Song Restarts)
Technique: Quad Hold
FFR Konami Deal
Early discussion on explicit songs (Dishwater)
FFR Trainers (for cheating scores, etc.)
AND subsequently, the massive negative score glitch
Tyson Stevens' (Scary Kids Scaring Kids) death
Genre: Glittercore
AAA requirement changes (Perfect score rather than first place)
Screen cut (No speed mods)
Level 6
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Alt Engine Leaderboards
songstowearpantsto - Tetris
Shadow of the Beat - My When Clones I Am Out Many
AAAAs
Star Salzman - Platypus
FFR Idol
Hidden ghost notes
My alt accounts
FFR Rap Battle
D7 Chat
VancouFFR
Veteran early access
Level 7
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Refreshing crashes the site
Clicking on arrows to hit notes
FFR Characters
Impersonation profiles (e.g.
https://www.flashflashrevolution.com/profile/tassiefoot )
Allrise - Victims and Martyrs (I believe this was a 2003 master once available off of Jones Soda's now-defunct music site)
The Fat's Sabobah's old unreleased songs (e.g. Salad for Your Tuesday)
Other old FFR songs
User: Bynary Fission
Profile Pets
50 Cent - In Da Club (Easter Egg)
FFR Stickers
FFR rare shirt
FFR Username Change
Musician: Unknown
Song: Token Whore
Straight to Video (Clusteryiff Mix)
That time I ERP'd in general chat
Haroon Piracha - Runny Morning (Slower, unremixed version of the song, not featuring SGX)
FFR Chat: The posting of bestiality video links in the Garbage Bin room
Things I don't know about that other people have mentioned:
Chillvision 6
Colt.45
The Darkshark Saga
dicksdicksdicksdicksdicksdicks
dick pic in forums
dohoho
FFR Teams
FFR-B43-12102002.exe
FFRcon
get bmah'd
icyworld files
LegitMusicProducer
n3v3rl4nd
NFD Logs
paq
Queenashy
Raz0r
summerschool
SSFFRC
that guy whose cousin wanted to fuck him
I think I recall a song titled "Happy Halloween" at one point, but from what I remember the song didn't actually exist but was simply listed?
Also I remember people telling me about Pause Break back in the day, but I found the key didn't cause any affect in the game.