Sas Zombie Assault 1 [UPDATED]

The sound design deserves particular praise. The sound of the MP5 firing (a distant, rapid tap-tap-tap ) mixed with the wet squelch of a zombie headshot created a satisfying audio feedback loop. The ambient music was a looping, eerie synth track that increased in tempo as waves progressed. When the "Wave Complete" fanfare played, players would physically exhale, finally relaxing their shoulders for the 10-second shop window.