Bacterias - Left 4 Dead 2

"Bacterias - Left 4 Dead 2" is a high quality rip of "Bacterias" from Left 4 Dead 2.

Jokes
At 0:02, the melody changes to the "Dead Body Report" jingle from . At 0:06, it changes to "Human Music" from the Rick and Morty episode "M. Night Shaym-Aliens!". At 0:09, the track is edited to sound like "Round Start" from Among Us. At 0:12, the melody changes to "the new rick rolld".