Mastered UI Kostas

Mastered UI Kostas is a Greek YouTuber who joined around June 27, 2016. He's well-known for his Sonic and Sonic.exe videos.

Why He's Amazing

 * 1) He's a great coder when it comes to making his own Sonic the Hedgehog and Sonic.exe mods, he even tries to play other people's Sonic or Sonic.exe mods to see how he likes the mod.
 * 2) His GIF on Tails.exe is also quite nice, and it has a cool eye glowing look, which is useful if you wanna make Tails.exe saying "I AM GOD".
 * 3) The animation on his original trailer looks outstanding, he even thanked LucasRPDJ for creating his channel trailer.
 * 4) The intro and outro he uses for his videos is quite nice and it's also interesting to watch.
 * 5) His YouTube channel banner looks super cute with him and Sonic the Hedgehog in the banner.
 * 6) He even created a decent video where he wins at Sonic.exe round 2 and saved everyone in the game which gives him the good ending.
 * 7) When it comes to making Sonic.exe videos, the videos he does with them contains a good story. Even those times when a character dies ends up emotional.
 * 8) He even shows funny moments in some of his Sonic.exe videos like the "IT'S BREAKFAST TIME! " on his Silly.TIFF gameplay video.
 * 9) He made his own mod about him going against Sonic.exe.

The Only Bad Quality

 * 1) Because most his videos focuses on Sonic.exe, they can be disturbing at times.