ACertainCosplayer @catmario0001 #975180117

20 February 2019

account created (per Roblox API)

22 Oct 2026, 06:08

last measured (UTC)

Username record

@catmario0001 — observed 22 October 2026

Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.

Groups owned (as measured)

Annyoing community#35286011

Open data

Download this user’s observed record: username history (CSV) · record (JSON)

Also a member of

Nosniy Games#3461453 · Fan

BIG Games Pets#3959677 · Fan

Chillz Studios#2782840 · 🌟Royal Member🌟

Bee Swarm Simulator Club#3982592 · Member

BlushCrunch Studio#14576965 · Member

Car Crushers Community#2726951 · Skilled Crusher

Broken Wand Studios#4430841 · ✨ | Fans

RELL World#1226491 · [Gen] 2X2X

Paradoxum Games#4914494 · Player

Thinking Project#1235888 · noob

RELL GAMES#4939446 · Bronze Rell

USSF - United States Special Forces#22025 · [5] Sergeant

Play Legends Arena#33704704 · Member

Virtual Valley Games#1241210 · VVGer

Golden Dominus games#7213677 · Member

SEA Military#2648601 · [T] Trainee

Innovation Inc.#157764 · Member

ECG Studio#7227187 · Member

generic roleplay gaem fanclub.#5574524 · fan.

Double Bandit: Hunted#35269971 · Survivors

HD Dev#3204047 · Member

Badorkbee#3375285 · Follower

TenuousFlea Universe#4814485 · Supporters

Wings ツ#2514178 · 😶 customer

FE Studios#5112430 · Group Members

xSquad#2943804 · // Community

Pinewood Builders Security Team#645836 · Trainee

Project Mirror Labyrinth#127473071 · Member

Piggy Roleplay : Infection Official Group!#6306207 · Supporters

Red Cat Channel#4046965 · Member

Containment Breach Community#3140613 · Supporters

SweetOven Studios#36017071 · Member

Side Productions#34323581 · Member

Sans Multiverse & Sans vs Chara#5319738 · Member

HIM-VERSE STUDIOS#10174443 · S.T.U.P.I.D member

JUPITERPIERCER - Sans AU Tycoon#5530638 · Dreamful Member

YFJ Studios Official#2526997 · Group Member

Weibu Studio#11274913 · Core Player

Undertale Ultimate Time Line Community#8229950 · Member

UT Fighting!#5752753 · Peoples!

rBreach Official Community#4767891 · Member

Undertale: Last Corridor Official#15964608 · Member

Lad's Doodle Sphere#5668366 · STAY DETERMINED NEUTRAL SOULS

Glitchtale: Battle of Souls#5050445 · Soul Mage

Vulkano#7136650 · ⭐Fans⭐

GreenGem Studios#10226822 · Member

USB Fan Group!#7649015 · Fan

Nyternia Studios#5221026 · Player

Sands Offical Group#8211960 · Sander

Dark Wood Studio (Original)#4046228 · Member

SANS FIGHT SIMULATOR GROUP#7259012 · Sans fight sim fans

YRUS Team#9158191 · Group Member

Fizzy Studio's#5858107 · Miner!

TEOTW#9319673 · Member

Under Making#10249161 · Member

TouhouStudios#12030999 · Beginner Soul

Drip Sector#3695495 · Member

Undertale Really Fake Ops Group#14206200 · Member

Remastered Realities#14366149 · Group Member

Destiny Cops#3036428 · Member

Undertale: Multiverse Theory Community!#10169320 · Member

Mr. Wing Ding Group#7925314 · Member

UT:Unfair OPS Group#16023927 · Unfair Mickey Enjoyers

Number Balloon Fans#877096 · 1

I&J Games#5241695 · 1

MeepoSV1#8046729 · Member

violet new generation#7350200 · Member

helloooooo my friendssssss#4992731 · Member

Illusionists Development#5448556 · Fans

Undertale: Soul Protectors#12395077 · Member

Kocher Viaduct#7145602 · Member

ROBLOXian Spy Agentcy#699903 · Recruit Spy (s)

Cheap Clothing.#2974474 · Customer

Fashion Clothes inc..#5398851 · Member

Pexux Fan Group!#4324362 · TRAINER

"MIA"#11863284 · verified player

SURVIVAL APOCALYPSE RECOPE/HELP GIDE#418868 · Member

HFP STUDIOS#15149699 · Monkey

Membership and rank as measured from this user’s public group list.