9e]IW8lnJN;J[88U316;JA!c:,>1Q9LViK;Jnrr;e+2A5m&]:24`D9/(-@=>3p(9km[F9m UnV9JCQC<,?Js;gE:=:fTe8A6)E>:2*.=<^g.K>"2XO;,pL`6r@lA:If2E;gE::<-i2'@73C q9PS3!=$q%F9iP:_=_]fJ:2+B]9NXo"9mL5':fLt=>'a=1=Apqd9h0/4@mj1<<(9b=[P&e@ r+Iu;-.OY:O+oW9e^*&?Q#6Ypsm=D^r7
Yeah, so, that looks to have been produced with some sort of character substitution or Caesar/shift cipher. It could be a keyboard transposition cipher of some kind, given that there is the noisy keyboard storyline in the video.
I did some elementary frequency analysis on the characters used, but couldn't find a Caesar shift amount using ASCII that lined it up. It must be a more random substitution cipher of some sort, or a slightly reduced ASCII character set for the shift. I'm just about fed up with this whole contest, lol. I've gotten close but haven't won ANY of them!

It could also be a baseX encoding, where X >= 83, since there are 83 unique characters.