THIS FAN GAME IS FREE!

The original version of All Hell Unleashed, along with its codes and information, can be found HERE. Version 6.66 is an upgraded edition of the game.

---

What's new in v6.66

• Alongside the main character, you can now play as Ash Williams (Evil Dead) and Jason Voorhees (Friday the 13th), each with their own unique intro and ending. The NSFW Disrobe code has been removed to make room for them.

• Face Regan from The Exorcist as a hidden boss and earn a secret weapon.

• The Infinite Health Cheat has been refined: no recoil and no more deaths from falling into gaps.

• On the Hellraiser stage, the Butterball Cenobite replaces the Chatter Beast.

• In Camp Blood Mode, victims now drop hearts and invincibility potions.

• New Ash Minigame! If Jason gets one, Ash deserves one too!

• Miscellaneous updates, including new codes in the Special Thanks & Prototype Testers screens, and a tweak to the SKELETAL Game Genie code.

---

Story

Amidst a realm where darkness reigns and evil lurks in every shadow, a sinister cult has unleashed chaos upon our world. Introducing 'All Hell Unleashed,' the NES game that pits YOU against the most infamous horror icons of all time.. Jason, Michael, Freddy, Candyman, Ghostface, Leatherface, Chucky, Pennywise, Pinhead and the Killer Klowns. As the world teeters on the brink of eternal fear, you must embark on a perilous journey to confront these iconic villains. But beware, time is of the essence, for the shattered fragments of a cursed amulet hold the key to sealing the dimensional rift and saving our world from eternal darkness. Can you rise to the challenge, gather the fragments, and stop the cult before it's too late? The fate of humanity rests in your hands. 'All Hell Unleashed' Confront the terror… or let it claim your soul.

---

Controls & Movement

• Use the directional pad to move. Press Down to duck. Hold B to run. Press A to jump. Press B to throw your weapon.
• Press Select to switch weapons. Press Start to pause (pausing is disabled during boss fights).
• Double-tap A to perform a double jump on certain platforms.
• Press A or Start to advance to the next screen. Press Select to skip the story.

Weapons & Combat

• Knife – Deals 1 damage to regular enemies. Short range but can be thrown rapidly.
• Brass Knuckle Knife – Deals 2 damage to regular enemies and can pass through blocks. Slower but travels a long distance.
• Molotov Cocktail – Deals 3 damage to regular enemies and can destroy breakable blocks. Follows an arc when thrown.
• The Purge – Unlocks after defeating Regan from The Exorcist. Clears all enemies on screen, but can only be used once per level (resets if you die) and does not work on bosses.
• Different weapons have unique effects on enemies and obstacles.
• Breakable Blocks will reappear if you leave the screen and return.
• Bosses become vulnerable when they turn red. Each boss has a specific weapon weakness, causing them to take 2 damage per hit instead of 1. Defeat them to obtain amulet shards.

Power-Ups

• Invincibility Potion – Appears when you have 1 health, granting temporary invincibility.
• Time Freeze – Appears when you have 3 health, stopping all enemy movement for a short time.
• Power-ups only spawn in the main stages (not in Druid stages). However, if collected before entering a portal, they will carry over into Druid stages until their timer runs out.
• Each power-up can only be obtained once per life.
• Pausing is disabled while a power-up is active.

Objectives & Survival

• Collect 8 Dimensional Orbs in each level to open a portal to the next area.
• If you open a portal and it becomes stuck somewhere, another one will spawn elsewhere in the level if you search. If you die with all 8 orbs, the portal will open automatically when you continue.
• Save damsels to fully restore your health. Killing them will reduce your health to 1. Your choices will determine the game's ending.
• Gather all 10 amulet shards to restore balance to the world.

---

Codes & Secrets

• Camp Blood Mode - Press the select button 13 times on the "Play our other NES games!!" screen in the credits.

• Ash Mini Game - On the instructions screen, after defeating the cult member, hold the Start button as you enter the portal to activate it.

• Infinite Health Cheat - On the first credits screen, press Select, A, Left, Up, Down. A sfx will go off if done correctly (This spells salud which means health in spanish).

• Regan from The Exorcist — Secret Boss Fight - On the Halloween stage, a house now has a flickering window. Climb the ledges and enter it to challenge her.

• Absurd Mode - Right after the amulet shatters in the story, press A, B, Select, Up, Right, and Down (spells "Absurd"). A laughing SFX will play if done correctly. In this mode, if you get hit once... YOU'RE DEAD ☠️

• Secret Thanks - On the Special Thanks screen, press Select + Up for our friends at Super Ultra Mustard Man.

• Mascot for a Beta Tester – On the Prototype Testers screen, hold B and press Left three times to make Bl4h8l4hBl4h’s mascot appear.

• Jump Straight To The Final Boss by pressing B, A, Down, B, A, Down on the "Fista Productions Presents" screen (Spells BADBAD).

• Fista Cameos - On the lead-up to the final boss, fall down the first gap to see some familiar faces.

• All Lag Unleashed - Enter the 2nd gap in the lead-up to the final boss to a room that pokes fun at the lag issue in the game.

• Freddy vs Jason - Enter the 3rd gap in the lead-up to the final boss to see Freddy and Jason fighting each other for eternity in hell!

Note: For the codes that require a button combination, they must be performed after the fade-in is complete for them to work properly.

Game Genie Codes:

• VILLAINS - This will enter a secret room when you select boss rush.

• SKELETAL - This will replace the main theme with another familiar tune.

---

Behind the Horror

This is my swan song to my free NES horror fan games. This game began in January 2024 when I couldn’t decide which horror franchise to tackle next.. so I crammed in as many as possible! What began as a chaotic idea turned into a fully fleshed-out game, built to the best of my amateur abilities.

This has been the hardest game I’ve ever programmed. I can’t thank Kevin81 and Dale Coop enough for their coding expertise (and for putting up with me bugging them daily). It’s also the longest I’ve ever worked on a game. My other projects were short, simple games knocked out in 1-3 months tops. With this one, I’d go on quick creative bursts, then hit weeks of burnout, mentally recovering before diving back in.

But we stuck with it, and now we’re here. I’m proud of this farewell game, and I hope you all enjoy it as much as I enjoyed stitching this monster to life. 🤘🏻

Started in January 2024. Released April 11, 2025. V6.66 released October 1, 2025.

---

Credits

• Game, Programming, Misc GFX - Steve (Fista Productions)  
• Music, SFX, Dev Help - Kevin81
• Lead Pixel Artist - Lilith Brendan
• Horror Icon Label Artwork - Tollbooth10
  
• Commercial Voiceover - Andy Colón
• Bitbox, card insert, & cartridge design - Steve (Fista Productions)

---

Songs used in AHU

• Friday the 13th Stage - F13 Part 3D Theme Song by Harry Manfredini
• Halloween Stage - Halloween Theme by John Carpenter
• A Nightmare on Elm Street Stage - A Nightmare on My Street by The Fresh Prince & Dj Jazzy Jeff
• Candyman Stage - It Was Always You, Helen by Philip Glass
• Scream Stage - Red Right Hand by Nick Cave & The Bad Seeds
• Texas Chainsaw Massacre Stage - TCM ambience by Kevin81
• Child's Play Stage - Child's Play Theme
• Stephen King's It Stage - Pennywise Theme Music by Richard Bellis
• Hellraiser Stage - Hellraiser Theme by Christopher Young
• Killer Klowns Stage - Killer Klowns by The Dickies
• Title Screen - Mystery by John Carpenter
• Story Screen - Roberta Williams' Phantasmagoria Chapter 6 music
• Game Over Screen - Trinity by Matt Kennedy
• Boss Theme - It's Time To Leave by Dan Dombrowsky
• Final Boss Theme - Slowed down reimagining of boss theme by Kevin81
• Win Screen - Hofner Dawn by John Carpenter

---

Extras

• "Official" NES Cart label WITH & WITHOUT top.
• Bitbox Cover art (Stone Age Gamer) can be downloaded HERE.
• 1 Page Manual for Bitbox - FRONT, BACK.
• The All Hell Unleashed OST by Kevin81.
• All Hell Unleashed NSF file.
  
• Speedrun.com page
• RetroAchievements page (Under Construction)
• Playlist I created of All Hell Unleashed videos I found on YouTube .

---

Robert Englund, the iconic Freddy Krueger himself, holding a copy of All Hell Unleashed in his hands!

---

Kane Hodder, the legendary Jason Voorhees from Friday the 13th Parts 7, 8, 9, and X, with a copy of All Hell Unleashed!

---

Be sure to play the NES demakes of my old 90s horror PC games that started it all!

Friday the 13th: Return to Camp Blood (1998)

Halloween: October 31st (1999)

A Nightmare on Elm Street: Son of a Hundred Maniacs (1999)

Candyman: Be My Victim (2006)