DOOM 64 Map 29 (100% Secrets Walkthrough) [Outpost Omega] 1080p 60FPS

Level 29: Outpost Omega [Secret Level]
Designed by: ?
Difficulty: Watch Me Die!
Weapons Introduced: THE UNMAKER (cut weapon from original doom bible, can be upgraded with demon keys)
Enemies Introduced: Mancubi, Pain Elementals (oh god, THESE assholes)
This level is pretty important since it's the first one you can acquire the UNMAKER, and the first demon key. The Unmaker is a laser-firing gun made from the flesh and bones of demons, and was a cut weapon from the original DOOM bible. This is the only game in the entire series to have it. It uses cell ammo and is only moderately useful at first, however, It can be upgraded by acquiring hidden demon keys throughout the game's secret levels.
Demon Key #01/03: 03:54 (Upgrades Unmaker fire rate)
Keys:
Red key: 00:41 (press terminal to reveal, used at 03:04 for Demon Key #1 secret)
Blue key: 02:02 (used at 02:31)
Yellow key: 02:31 - 02:49 (used at 05:08)
Secrets:
Secret 1: 00:00 (doesn't count towards secret count)
Secret 2: 01:41 (only works if you pickup the shotgun)
Secrets 3/4: 03:22
Secret 5: 03:51 (The unmaker)
Secret 6: 03:54 Demon Key #1 (requires red key from earlier)
Secret 7: 04:09
Secret 8: 06:17
Secret 1 counted towards the secret count in the original Doom 64 release, but does not in this remaster.
Secrets 3, 4, and 7 all were not counted as secrets in the original, but do here.