Map 21 of Doom Zero introduces another new enemy called the Alpha Soul. These things use an early alpha sprite for the Lost Soul, rapid-fire Cacodemon fireballs (even without Fast Monsters enabled), and usually come in groups. The key to navigating this map comes from visual cues above the different passages. In the star-shaped room you start in, there are five doors with the face of the Demon Witch we met in the previous map, but only the one with glowing red eyes can be opened, and the others are activated as the map progresses. On the other side of each door is a gap leading to a passage on the other side, with a red or white line above it. If the line is red, you want to run across into the passage. If the line is white, you want to lay off the run button and walk across.<br />Secrets: 1:51, 3:58, 4:51, 6:43, 8:01, 8:21, 8:38, 9:06<br />=======================<br />Full Doom Zero Playlist: <a href="https://www.youtube.com/watch?v=9ipmV875xWY&list=PLcZithGR1z9Bkr6KX3O49z2TD_bqF26jD" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=9ipmV875xWY&list=PLcZithGR1z9Bkr6KX3O49z2TD_bqF26jD</a><br />More Doom Add-ons: <a href="https://www.youtube.com/watch?v=IiJzaJMyzOU&list=PLcZithGR1z9AJ_cyUgtWwpM76wz6aKfWN" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=IiJzaJMyzOU&list=PLcZithGR1z9AJ_cyUgtWwpM76wz6aKfWN</a><br />Full Doom 2 Ultra-Violence+ Playlist: <a href="https://www.youtube.com/playlist?list=PLcZithGR1z9DvVb-DTG_aiDmR3yvISlGz" target="_blank" rel="nofollow">https://www.youtube.com/playlist?list=PLcZithGR1z9DvVb-DTG_aiDmR3yvISlGz</a><br />Subscribe and ring the bell for more content! <a href="https://www.youtube.com/subscription_center?add_user=MetalSmasherGaming" target="_blank" rel="nofollow">https://www.youtube.com/subscription_center?add_user=MetalSmasherGaming</a><br />Backup Channel #1: <a href="https://www.bitchute.com/channel/InVB7p6lyXGX/" target="_blank" rel="nofollow">https://www.bitchute.com/channel/InVB7p6lyXGX/</a><br />Backup Channel #2: <a href="https://lbry.tv/@MetalSmasherGaming" target="_blank" rel="nofollow">https://lbry.tv/@MetalSmasherGaming</a>:e<br />Backup Channel #3: <a href="https://www.dailymotion.com/MetalSmasher86" target="_blank" rel="nofollow">https://www.dailymotion.com/MetalSmasher86</a><br />My Backloggery: <a href="http://www.backloggery.com/MetalSmasher86" target="_blank" rel="nofollow">http://www.backloggery.com/MetalSmasher86</a><br />Help Translate my Videos!: <a href="http://www.youtube.com/timedtext_cs_panel?tab=2&c=UCvzwp5nrPwmamBOPSwd4DNw" target="_blank" rel="nofollow">http://www.youtube.com/timedtext_cs_panel?tab=2&c=UCvzwp5nrPwmamBOPSwd4DNw</a><br />Get TubeBuddy: <a href="https://www.tubebuddy.com/MetalSmasherGaming" target="_blank" rel="nofollow">https://www.tubebuddy.com/MetalSmasherGaming</a><br />My Cyberscore Profile: <a href="https://www.cyberscore.me.uk/user/2188" target="_blank" rel="nofollow">https://www.cyberscore.me.uk/user/2188</a><br />My Speedrun.com Profile: <a href="http://www.speedrun.com/user/MetalSmasher86" target="_blank" rel="nofollow">http://www.speedrun.com/user/MetalSmasher86</a><br />Twitch: <a href="http://www.twitch.tv/Metalsmasher86" target="_blank" rel="nofollow">http://www.twitch.tv/Metalsmasher86</a><br />Facebook: <a href="https://www.facebook.com/MetalSmasher86-164602153573538/" target="_blank" rel="nofollow">https://www.facebook.com/MetalSmasher86-164602153573538/</a><br />Twitter: <a href="https://twitter.com/MetalSmasher86" target="_blank" rel="nofollow">https://twitter.com/MetalSmasher86</a><br />Steam: <a href="http://steamcommunity.com/id/MetalSmasher86/" target="_blank" rel="nofollow">http://steamcommunity.com/id/MetalSmasher86/</a><br />=======================<br />#Doom2 #DoomII #Doom #DoomZero #UltraViolence #UltraViolence+ #UltraViolencePlus #gaming #YouTube #subscribe #comment #video<br />...<br /><a href="https://www.youtube.com/watch?v=o7CsnjnjtV4" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=o7CsnjnjtV4</a>