The Angry Engineer - Challenger Share: Download MP3 More song by Challenger Input The Output 2:51 Input The Output 2:51 Death Museum 3:39 Blackouts 3:38 Unemployment 4:00 This Is Only A Test 3:35 Brand Loyalty 3:40 Sweet Vaccine 2:52 Crushed City 2:21 The Trojan Horse 5:11