A downloadable free NES homebrew

THIS FAN GAME IS FREE!


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.
• 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.

Infinite health cheat (except pits) - 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).

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 ☠️

Disrobe Mode - WARNING NSFW. On the title screen press Down, Select, Right, and B. A sfx will go off if done correctly (This spells disrobe without the vowels). Pay close attention to the player, weapons, damsels, and level win screens when this is activated.

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.


Extras


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

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)

Download

Download
All Hell Unleashed.nes 512 kB

Install instructions

NES File: Download and play with your favorite NES emulator. Best played with Mesen.

When using an NES/SNES Classic. Change core to FCEUmm, then when playing press start + select, options, and change color palette to "sony-cxa2025as-us" for best results.

Development log

Comments

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(+1)

One can definitely feel the sweat, tears, dedication and blood that went into the game. 

Most importantly the blood, It’s bloody awesome 🔪🩸🔥

Horror and Slasher movie/game fan, what can you ask more.

Thanks a lot, another masterpiece. 🪦

Have a fright night everyone! 💀