How to defeat Mecha Slappi in Revenge of the Savage Planet
If you're aiming for 100% completion in Revenge of the Savage Planet, you won’t want to miss the hidden Mecha Slappi boss fight. This challenging encounter is entirely optional, meaning you can finish the game without ever facing it. However, dedicated players seeking all achievements and secrets must track down this formidable foe.
In this guide, we’ll cover everything you need to know about locating Mecha Slappi, the best strategies to defeat him, and the rewards you’ll earn for your victory.
Mecha Slappi isn’t part of the main storyline—you’ll only encounter him if you complete the Interstellar Enigma quest by finishing all shrines and researching the Pentaforce. This unlocks Slappi’s Den of Fun, a secret planet where the battle takes place.
Since this area is easy to miss, make sure you’ve fully explored the game’s side content before attempting the fight.
The battle against Mecha Slappi is divided into three intense phases, each requiring different tactics. Here’s how to survive and emerge victorious.
At the start, Mecha Slappi stays at a distance, forcing you to rely on ranged attacks. The arena provides:
Key Tips:
Scan both Mecha Slappi and Slappi’s body for research logs. Interact with Slappi to trigger a final cutscene and roll the credits.
Upgrade your Default Air Filter in Revenge Of The Savage Planet for enhanced performance and survival. Discover tips
How To Enable Snap Targeting in Revenge of the Savage Planet
Learn how to enable Snap Targeting in Revenge of the Savage Planet with our step-by-step guide.
How to unlock all Planets in Revenge of the Savage Planet
Unlock all planets in Revenge of the Savage Planet and embark on an epic adventure filled with challenges
Where to Find All Zenithian Rift Orange Goo in Revenge of the Savage Planet
Discover all the Orange Goo locations in Revenge of the Savage Planet:Zenithian Rift. Uncover secrets and enhance your gameplay
How To Break Amber in Revenge of the Savage Planet
Discover the secrets of Revenge of the Savage Planet and learn how to break amber effectively. Unleash your adventure!
How to get the Underwater Scooter in Revenge of the Savage Planet
Discover how to obtain the Underwater Scooter in Revenge of the Savage Planet with our step-by-step guide.
How to unlock Default Air Filter upgrade in Revenge of the Savage Planet
Learn how to unlock the Default Air Filter upgrade in Revenge of theSavage Planet with this step-by-step guide. Discover the requirementsand tips to enhance your gameplay!
How to get to the fifth planet in Revenge of the Savage Planet
Discover the ultimate guide on reaching the fifth planet in Revenge of the Savage Planet. Tips, tricks, and strategies await!
How to catch the Beetle in Revenge of the Savage Planet
Learn effective strategies to catch the Beetle in Revenge of the Savage Planet.
How to fix Revenge of the Savage Planet crossplay not working error
Struggling with crossplay in Revenge of the Savage Planet? Explore ourcomprehensive guide to troubleshoot and resolve connectivity
How to Beat Cyber Wardrill in Revenge of the Savage Planet
Master the ultimate strategies to defeat Cyber Wardrill in Revenge of the Savage Planet. Unlock tips and tricks for victory!
All Doomstones Locations & Effects in Oblivion Remastered
Discover all Doomstone locations and their effects in Oblivion Remastered. Enhance your gameplay with our guide!
How to help the Small Bourgeon in Clair Obscur Expedition 33
Join the Clair Obscur Expedition 33 to support the Small Bourgeon. Discover how you can make a difference today!
How to teach the troubadour to play in Clair Obscur Expedition 33
Join the Clair Obscur Expedition 33 and learn to play like a troubadour! Discover music, creativity
Where to Find Hexga's stone crystals in Clair Obscur Expedition 33
Join the Clair Obscur Expedition 33 to uncover the mysteries of Hexga's stone crystals. Adventure awaits!
In this guide, we’ll cover everything you need to know about locating Mecha Slappi, the best strategies to defeat him, and the rewards you’ll earn for your victory.
Where to Find Mecha Slappi
Mecha Slappi isn’t part of the main storyline—you’ll only encounter him if you complete the Interstellar Enigma quest by finishing all shrines and researching the Pentaforce. This unlocks Slappi’s Den of Fun, a secret planet where the battle takes place.
Since this area is easy to miss, make sure you’ve fully explored the game’s side content before attempting the fight.
Mecha Slappi Boss Fight: Step-by-Step Strategy
The battle against Mecha Slappi is divided into three intense phases, each requiring different tactics. Here’s how to survive and emerge victorious.
Phase 1: Ranged Combat
At the start, Mecha Slappi stays at a distance, forcing you to rely on ranged attacks. The arena provides:
- Bombegranates
- Acid Bombs
- Healing stations (use them wisely, as they recharge slowly)
Key Tips:
- Keep moving to avoid his laser attacks.
- Use Charged Shots, Bombegranates, and Acid Bombs to chip away at his health.
- Ensure your gear is upgraded to carry extra bombs—running out mid-fight can be disastrous.
Phase 2: Shield Mechanics and Environmental Hazards
Once his health drops, Mecha Slappi activates a color-changing shield, making him invulnerable until you counter it correctly:
| Shield Color | Counterattack Method |
|---|---|
| Blue | Use the Magnetic Fork to throw metal debris |
| Green | Hit him with a Blight Bomb |
| Orange | Throw a Bombegranate |
Additional Challenges:
- The floor begins breaking apart, revealing lava pits.
- Small enemies spawn, distracting you from the main fight.
- Mecha Slappi gains new attacks, including rocket barrages—watch for ground markers to dodge.
Pro Tip: If you haven’t unlocked the Magnetic Fork, you won’t be able to progress past this phase—make sure you have it before attempting the fight.
Phase 3: Destroying Mecha Slappi’s Weapons
In the final phase, Mecha Slappi becomes even more aggressive, deploying:
- Arm guns
- Leg blasters
- Shoulder-mounted lasers
How to Win:
- His main body is now invincible—focus on destroying each weapon individually.
- Each gun has its own health bar; taking one out reduces his overall HP and disables that attack.
- Stay mobile, prioritize dodging, and methodically eliminate each weapon.
Once all weapons are destroyed, Mecha Slappi is defeated!
Rewards for Beating Mecha Slappi
After the battle, don’t forget to:
Unlockable Content:
- Slappi Doll – Available for purchase in Nu Florida, which you can place in your hub.
- Two Achievements:
- "Entertained... to Death" (for defeating Mecha Slappi)
- "Entertained to Death" (for placing and interacting with the Slappi Doll)
Final Tips for Success
- Upgrade your gear before the fight—especially bomb capacity and the Magnetic Fork.
- Stay mobile—most of Mecha Slappi’s attacks are avoidable with good movement.
- Manage resources—don’t waste bombs or healing items early on.
By following this guide, you’ll conquer Revenge of the Savage Planet’s toughest hidden boss and claim your well-earned rewards. Happy hunting!
Did you find this guide helpful? Share your victory in the comments below!
Platform(s): PlayStation 5 PS5, Xbox Series X|S, Xbox One, Microsoft Windows PC
Genre(s): Action-adventure
Developer(s): Raccoon Logic Studios Inc
Publisher(s): Raccoon Logic Studios Inc, Maximum Games
Mode: Single-player, multiplayer
Other Articles Related
How To Get Default Air Filter Upgrade in Revenge Of The Savage PlanetUpgrade your Default Air Filter in Revenge Of The Savage Planet for enhanced performance and survival. Discover tips
How To Enable Snap Targeting in Revenge of the Savage Planet
Learn how to enable Snap Targeting in Revenge of the Savage Planet with our step-by-step guide.
How to unlock all Planets in Revenge of the Savage Planet
Unlock all planets in Revenge of the Savage Planet and embark on an epic adventure filled with challenges
Where to Find All Zenithian Rift Orange Goo in Revenge of the Savage Planet
Discover all the Orange Goo locations in Revenge of the Savage Planet:Zenithian Rift. Uncover secrets and enhance your gameplay
How To Break Amber in Revenge of the Savage Planet
Discover the secrets of Revenge of the Savage Planet and learn how to break amber effectively. Unleash your adventure!
How to get the Underwater Scooter in Revenge of the Savage Planet
Discover how to obtain the Underwater Scooter in Revenge of the Savage Planet with our step-by-step guide.
How to unlock Default Air Filter upgrade in Revenge of the Savage Planet
Learn how to unlock the Default Air Filter upgrade in Revenge of theSavage Planet with this step-by-step guide. Discover the requirementsand tips to enhance your gameplay!
How to get to the fifth planet in Revenge of the Savage Planet
Discover the ultimate guide on reaching the fifth planet in Revenge of the Savage Planet. Tips, tricks, and strategies await!
How to catch the Beetle in Revenge of the Savage Planet
Learn effective strategies to catch the Beetle in Revenge of the Savage Planet.
How to fix Revenge of the Savage Planet crossplay not working error
Struggling with crossplay in Revenge of the Savage Planet? Explore ourcomprehensive guide to troubleshoot and resolve connectivity
How to Beat Cyber Wardrill in Revenge of the Savage Planet
Master the ultimate strategies to defeat Cyber Wardrill in Revenge of the Savage Planet. Unlock tips and tricks for victory!
All Doomstones Locations & Effects in Oblivion Remastered
Discover all Doomstone locations and their effects in Oblivion Remastered. Enhance your gameplay with our guide!
How to help the Small Bourgeon in Clair Obscur Expedition 33
Join the Clair Obscur Expedition 33 to support the Small Bourgeon. Discover how you can make a difference today!
How to teach the troubadour to play in Clair Obscur Expedition 33
Join the Clair Obscur Expedition 33 and learn to play like a troubadour! Discover music, creativity
Where to Find Hexga's stone crystals in Clair Obscur Expedition 33
Join the Clair Obscur Expedition 33 to uncover the mysteries of Hexga's stone crystals. Adventure awaits!