Osis Duck Pattern/Combo Beatbox Tutorial by Hiro(first ever on YouTube!)
21:22
Reacting/Analysing to Osis vs Adi !
13:34
OSIS' SPECIAL SOUND | Beatbox Tutorial
22:49
You’ll never want to watch P*RN again after hearing my story…
12:56
OSIS | SHOWCASE | East German Beatbox Championship 2023
7:07
Osis Duck Combo/Duck Pattern Tutorial
6:41
OSIS VS GIVEN | BEATBOX REALM QUALIFIER | SEMI-FINALS
4:35
How To Beatbox - Inward Bass Tutorial
9:35