An announcement over the intercom in the SCP Containment Breach (I did not type "My Little Foundation: Containment is Magic" because the intercom is a different recording) that is played just after or a few minutes after SCP-173 breaches containment.

Credit me if you use this please.

Keter And Euclid Level

JT Machinima 
https://www.youtube.com/user/skullkruncher13

JT Machinima iTunes
https://itunes.apple.com/us/artist/j.t.-machinima/id302108325

Plants Vs. Zombies Garden Warfare 2 Rap By JT Machinima

Just Cause 3 Rap By JT Machinima - -I Don't Need A Reason-

Megaman theme song with lyrics

Credit to The Hives
Animation is done by Cut3

CS - GO Tick Tick Boom

Inspired by Piemation's famous animation "Suction Cup Man".
Link: https://www.youtube.com/watch?v=7XCk3AtUbvA

CS - GO Tick Tick Boom

Dunkin