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@koolninjakill

@koolninjakill #14211184

1,858
followers (as measured)
17 January 2011
account created (per Roblox API)
19 Sept 2026, 22:47
last measured (UTC)

Username record

@koolninjakill — observed 19 September 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)

cool cool dudes#64554
10
"UNSC"#164608
8
.B.O.S.S.#548703
2

Open data

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

Also a member of

Builders Club#8 · Member
1,362,930
The First Encounter Assault Recon#72321 · [SPC] Specialist
501,069
The Roblox Assault Team#7013 · [1] Conscript
259,513
Vortex Security#199219 · Player
192,113
Team Domino#293482 · Ensign
108,433
IMPERIUM EMPIRE | IE#290268 · Novitiate
36,922
Nightfall Clan #85654 · Initiate
25,371
Team Fortress 2 Fan Club#8493 · Member
11,734
↑#280387 · Boss
11,216
Roblox Advanced Military Division#113584 · Citizens
10,576
Coastal Combat#333575 · E0
6,350
Cobalt Nation#260452 · C | Cobaltian
5,140
Special Air Service (S.A.S)#47407 · Trainee
3,896
Silver Knights#191178 · [1]Thief
3,858
United Marine Forces of Robloxia#115070 · Recruit
3,545
TSD#164790 · [L] Private
3,291
Haze Corporation#296396 · LRT - Ensign
2,290
SQUAD 42 X#139173 · Recruit
2,221
ROBLOX News Official Group#275572 · Fan
2,175
Roblox Combat Patrol#502286 · Initiate
2,029
dark886 fans!#36501 · True Fans!
1,985
The Robloxian Coalition#212844 · 【LR】Aspirant
1,980
NoobLand Fans & Staff#346995 · Fan
1,793
STAR Forces#383897 · [1] Grunt
1,432
The Stealth Coalition#209687 · ■IND■ Inductee
1,381
Delta Force (D.F)#482812 · Cadet
1,337
Cherub agents#176278 · Red T-shirt
877
B.U.Z.Z.K.I.L.L#277646 · [1] Enlist
819
EPIC CIA of Roblox#336973 · [NULL-CLASS] Vassals
817
British Armed Forces#101268 · Crow
726
squad 43#112028 · Screening & Evaluation
675
FEAR!#529653 · [6] Colonel
620
The Central Communist Committee of ROBLOX#115032 · Party Member
540
Mature Robloxians.#537914 · Mature Robloxians
427
[{={❖The Legion Of The Immortals❖}=}]#542030 · Cadet
423
World Of Warcraft - Horde#543380 · Unchosen
414
Crimson Pirates#488489 · Swabbie
342
Fallout Fans#5125 · Fallout Fans
338
airplane/airport/pilot group#530445 · Pilots
286
Universal Business of Roblox#509935 · Learners
268
Victor Regiment#188320 · [1] Conscript
266
RESPECT DA FROGGIES!#507063 · Ribbit-5
239
Dark Star Skateboard#530871 · Skater
200
Spec Ops Field Unit#408299 · Sergeant
127
Fire Forces of Robloxia#153700 · [SR] Spark.
89
Proud Fedora Owners#410450 · Fedora Fan
75
The Grand Armor of Roblox#484027 · Priavte
70
[-Roblox Tactical Forces-]#485837 · [2] Private
66
Bounter hunters of robloxia#524197 · Corporal
53
S.P.T.F#408014 · Private [PVT]
51
Aerial assault force#513930 · Training
45
knife tactics#493107 · En list
45
D.E.L.T.A. S.Q.U.A.D.#539039 · Delta Boss 6
42
The Elder Scrolls V: [Skyrim]#550244 · Traveller
35
The Red Syndicate L.C.C#384593 · New Initative
35
jking121's Group#423780 · member
25
Robloxians At Naval Command#512446 · Corporal
25
H.T.A.F.F#517606 · Private
17
Peace Legion#533764 · Apprentice
14
The J Star Clan#545016 · J Star Scout
13
O.D.S.T.#16823 · Soldier
12
Stealth Recon Assault Force#413756 · Conscript [1]
12
Gray Wolf Clan group#523648 · Pups
7
the army of the republic (T.A.T.R)#522609 · Trooper
7
XassassinX#522517 · assassin master
7
Federal Service#477491 · [LR]Private Rank [2]
6
United Assault Force Military Police#352533 · Military Police
1
United Assault Force High Ranks#363528 · Colonel
1

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