Mastered UI Kostas
426K subscribers
Just a regular youtuber who's willing to make his dreams come true and to show to people what he's made of. Content that this channel represents; - Sonic.exe NU (5 planned projects) - Sonic The Hedgehog. - About my charecter's lore (In the near future). - And who knows? Maybe Trollge content as well. Pfp & Banner: https://x.com/SanTC1183
WHERE I'VE BEEN ALL THIS TIME...
Mastered UI Kostas · 16K views · 2 months ago
THE AFTERMATH IS FINALLY HERE! | "What if Junter won?!" - Bonus video (FINALE)! - {Not canon}
Mastered UI Kostas · 493K views · 5 years ago
The devil within... | Sonic.exe: NU - Exetior and Chaos Hunter/Junter related!
Mastered UI Kostas · 179K views · 4 years ago
Hard mode and no deaths! | Sally.exe EoT (Old Full Version)!
Mastered UI Kostas · 219K views · 5 years ago
All the pain of Tails is in this video... | NB Remake - Animation! {Not canon}
Mastered UI Kostas · 933K views · 5 years ago
TAILS WENT INSANE!!! Sonic.exe NB Remake - Tails followed Exetior's deal!
Mastered UI Kostas · 1.4M views · 7 years ago
Finally... this really was a torment! | Ordinary Sonic Rom Hack #4
Mastered UI Kostas · 85K views · 8 years ago
"THIS IS MY FATE..." | NB Remake (Voice Acting) + Extra Stuff! - (READ DESCRIPTION!)
Mastered UI Kostas · 6.5M views · 6 years ago
Is that all you've got, Old Kostas? | The Kostas Vs Thanos Game {Full Gameplay}!
Mastered UI Kostas · 14K views · 5 years ago
Exe Line (1, 2, 3, 4)! | Dubbed version!
Mastered UI Kostas · 658K views · 5 years ago
"What if MUIK..." | Sally.exe Eye Of Three Part 2 {Not canon}!
Mastered UI Kostas · 52K views · 5 years ago
RUN OR ELSE THIS DEMON WILL HAUNT YOU! - Sonic Mania | Halloween Mode Challenge 2019!
Mastered UI Kostas · 21K views · 6 years ago
PIG FELL OVER MEME! | (Sprite Animation by JJ201)
Mastered UI Kostas · 34K views · 6 years ago
The torment continues... | EoT/CS - Animation! {Not canon}
Mastered UI Kostas · 664K views · 5 years ago
THIS ENDS NOW! Exeana's Deadly Mission - Hard Mode 2.0 - Exeana escaped!
Mastered UI Kostas · 107K views · 7 years ago
Interesting! | Sonic.exe: The Parasite.
Mastered UI Kostas · 46K views · 7 years ago
TRAITOR! | Sonic.exe: Tower Of Millennium Part 2 (FULL VERSION) - Playing as Sark!
Mastered UI Kostas · 149K views · 6 years ago
THIS ISN'T ONLY A .EXE GAME - BUT THIS IS WHAT I CALL "HELL"! | Sonic.exe: Rise Of God!
Mastered UI Kostas · 63K views · 7 years ago
THE EPIC BATTLE! Sonic.exe NB Remake | Metal Sonic VS Exetior! Beta Version 2.0!
Mastered UI Kostas · 100K views · 6 years ago
TAILS' SUFFERING! | Sonic.exe NB Remake Beta Version - Tails' Route {Full Playthrough} - SCV!
Mastered UI Kostas · 202K views · 6 years ago