Etrange Overlord – Hidden Missions Guide

In Etrange Overlord, many missions have ‘hidden’ optional objectives, which you’ll need to complete if you want to gain more experience to upgrade your Happy Life Level and earn the related unlocks, such as increased weapon upgrade caps. While these become visible after clearing a level, knowing about them ahead of time can mean saving yourself the time and hassle of replaying missions.

If you want to 100% every stage on your first try, use this guide to Etrange Overlord‘s hidden optional missions. As a bonus, we’ve included a few tips for tackling some of the more difficult challenges.

Please note that due to the nature of this guide, it will name late-game areas and a boss name, so you may wish to proceed only as far as needed while playing to avoid spoilers for the story of Etrange Overlord.

Inaccessible Chef / Side Stories

Before proceeding into the mission list in full, a brief note. You will not be able to access missions which are up cliffs, on islands, and such at first. This includes Chef Story 5, Side Story 7 and Side Story 8 in Hell 4, Chef Story 6 in Hell 5, and others later on. Complete Hell 6-1 to unlock Macroon Flight Mode and then use this to access these additional stories and unlock more experience toward your Happy Life Level.

Hell – Optional Missions

Hell 1-5

• Don’t get hit by the Spiked Roller

Hell 2-2

• No Ally KO’s

Hell 2-3

• Defeat 3 Enemies via Pit Fall

Hell 2-4

• Clear Stage in 180 Seconds or Less

Hell 3-1

• Clear Stage with Recovery Point Difference of 10 or More

Tip: Camp at the enemy container and defeat all enemies quickly. Have a special attack ready to take down the large enemy when it appears.

Hell 3-2

• Defense Target Survives with 50% or More HP
• Defeat 10 Enemies via Pit Fall

Hell 3-3

• No Ally Pit Falls
• No Ally KO’s

Hell 4-1

• Defeat 20 Enemies via Turret Device
• Clear Stage in 110 Seconds or Less

Hell 4-2

• Clear Stage with Recovery Point Difference of 8 or More
• Clear Stage in 140 Seconds or less

Hell 4-3

• Don’t get hit by the Spiked Roller
• Clear Stage in 120 Seconds or Less

Hell 5-1

• No Ally Pit Falls
• Defeat 10 Enemies via Pit Fall

Hell 5-2

• Activate Healing Device 3 Times
• Defense Target Survives with 50% or More HP

Hell 5-3

• Defeat 10 Enemies via Special Attack
• No Ally KO’s

Hell 6-1

• Defense Target Survives with 50% or More HP
• Defeat 10 Enemies via Special Attack

Hell 6-2

• Defeat 1 Large Demon
• Clear Stage with Recovery Point Difference of 10 or More

Hell 6-3

• Clear Stage in 150 Seconds or Less
• No Ally KO’s

Hell 6-4

• Clear Stage in 300 Seconds or Less
• Don’t Drop the Key 3 or More Times

Tip: Carry the key with Étrange and dodge frequently. It’s better to use Étrange’s ranged weapon if you do need to attack, rather than getting close to an enemy with a melee character or dropping the key to use an item.

Hell 6-5

• Clear Stage in 150 Seconds or Less
• Activate Gravity Device 3 Times

Heaven – Optional Missions

Heaven 1-1

• No Ally KO’s
• Defeat 20 Enemies via Bomb

Heaven 1-2

• Clear Stage in 100 Seconds or Less
• No Ally KO’S

Heaven 1-3

• No Ally KO’s
• Defeat 5 Clones

Heaven 2-1

• Defeat 3 Enemies via Electric Shock
• Clear Stage in 120 Seconds or Less

Heaven 2-2

• Clear Stage with Recovery Point Difference of 5 or More
• Defeat 15 Enemies via Pit Fall

Heaven 2-3

• Clear Stage in 180 Seconds or Less
• No Ally KO’s

Heaven 3-1

• Activate Healing Device 5 Times
• Defense Target Survives with 80% or More HP

Heaven 3-2

• Defeat 20 Enemies via Bomb
• Defeat 100 C-things

Heaven 3-3

• Defeat 100 Enemies via Turret Device
• No Ally KO’s

Heaven 3-4

• Clear Stage in 180 Seconds or Less
• Don’t Get Hit by God’s Laser

Tip: Use the items to summon an object on God to stun him and use the pillars to take cover.

Mortal Coil – Optional Missions

Mortal Coil 1-1

• Clear Stage in 120 Seconds or Less
• No Ally KO’s

Mortal Coil 1-2

• Clear Stage in 165 Seconds or Less
• Clear Stage with Recovery Point Difference of 7 or More

Mortal Coil 1-3

• Clear Stage in 180 Seconds or Less
• Defeat Siegfried with Cat-Smith

Mortal Coil 2-1

• Clear Stage in 210 Seconds or Less
• Defeat 15 Enemies via Turret Device

Mortal Coil 2-2

• Activate Ventilation Device 8 Times
• Defense Target Survives with 70% or More HP

Mortal Coil 2-3

• Defeat 10 Enemies via Special Attack
• Clear Stage in 90 Seconds or Less

Mortal Coil 2-4

• Defeat 20 Enemies via Turret Device
• Clear Stage in 240 Seconds or Less

Mortal Coil 3-1

• Clear Stage in 200 Seconds or Less
• Defeat 5 Enemies via Electric Shock

Mortal Coil 3-2

• Clear Stage in 110 Seconds or Less
• No Ally KO’s

Mortal Coil 3-3

• Defeat 30 Clones via Turret Device
• Don’t Get Hit in Wave 2

Tip: During the second section of the fight (Wave 2), the sword attack alternates between the front and back platforms. Get it right the first time (in my testing, it always hit the front first), then move back/forward after the attack. The object that ‘slap’ down on you can be destroyed before it attacks. Other than that, keep an eye on obstacles and move platforms quickly.

If you are looking for another eccentric game with action elements, you might want to check out our review of Romeo is a Dead Man.

Many thanks go to Reef Entertainment for a PlayStation 5 review code for Etrange Overlord.

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Thomas Knight

A gamer since the days of Amstrad and DOS and someone who has dabbled in a variety of professions. He enjoys a wide variety of genres, but has been focusing on visual novels and virtual reality in recent years. Head Editor of NookGaming. Follow him and the website on @NookSite.