This article contains additional images to further illustrate its subject. To view them, go to Infernal Engine's Gallery.

Infernal Engine
Infernal Engine
Enemy Type Heartless
Role Boss
Origin Kingdom Hearts 358/2 Days
Home World Beast's Castle
Katakana デモンズフォートレス
Romaji Demonzu Fōtoresu

The Infernal Engine is an Emblem Heartless can be found exclusively as a boss in Kingdom Hearts 358/2 Days.

Journal EntryEdit

Kingdom Hearts 358/2 DaysEdit

The cannonballs this heavy tank Heartless fires can be returned with a block to take out the archers perched atop it.

The battering ram that emerges from its mouth before it charges is especially weak. Capitalize on that vulnerability, but be sure to get out of there before it begins its advance.


Kingdom Hearts 358/2 DaysEdit

Roxas is again sent to Beast's Castle to defeat yet another Heartless. After making his way through the castle to the courtyard, Roxas hears a roar from outside the gates. As he makes his way to the middle of the courtyard Beast is suddenly thrown from behind the gate and lands in front of Roxas. As he enters the bridge through the gate; Roxas is attacked by his target the Infernal Engine. After defeating the Heartless, Roxas learns of love—through the Beast's unyielding protection for Belle.


The Infernal Engine is a large, box-shaped, apparently mechanical Heartless with four black wheels, two on either side of its body. It appears to be predominantly made of wood. Its face takes up its entire front side, with a large, red, jagged mouth with yellow "lips" on its lower half, and a black "forehead" with silver, metal additives on it. Its eyes are a glowing yellow color and its Heartless emblem is in the middle of its face. There is a wooden guardrail on its top decorated by yellow and red patterns as well as four white spikes. The Infernal Engine is able to release a battering ram, hammer and boxes from its mouth.

Riding atop of the Infernal Engine are several smaller Heartless, referred to as "archers" in the Journal. Each of these Heartless wears silver armor, including a bullet-shaped helmet with an opening for their black faces and glowing yellow eyes. All of their helmets sport two short spikes and a curled, black antenna. They have small legs which allow them to move around the top of engine. They wield large, indigo weapons that fire projectiles and each sports a Heartless emblem emblazoned on their chests.


The Infernal Engine's name has several potential meanings. "Infernal" could refer to the fireballs its fires, as "infernal" can mean "of a great fire", or it could refer to its antagonistic nature, since infernal can also mean "fiendish" or "of or relating to hell". "Engine" is a reference to its apparent mechanical nature and it's use as a vehicle by the smaller Heartless archers. The Infernal Engine's Japanese name, "Demon's Fortress", reflects its massive, sturdy construct and the way the archers use it as a "fortress" of sorts. This name and the Infernal Engine's behavior are also reminiscent of the Demon Wall enemy from the Final Fantasy series.

Party Members
Roxas - Axel - Demyx - Larxene - Lexaeus - Luxord - Marluxia - Saïx - Vexen - Xaldin - Xemnas - Xigbar - Xion - Zexion
Secret Characters
Donald Duck - Goofy - King Mickey - Riku - Sora
Non-playable characters
Abu - Aladdin - Beast - Belle - Captain Hook - Card Soldiers - Carpet - Cave of Wonders Guardian - Cheshire Cat - Cogsworth - DiZ - Doorknob - Dr. Finkelstein - Genie - Hayner - Hercules - Jack Skellington - Jasmine - Kairi - Lock, Shock, and Barrel - Lumiere - Moogle - Mr. Smee - Naminé - Olette - Pence - Pete - Philoctetes - Queen of Hearts - Tinkerbell - White Rabbit - Zero
Agrabah - Beast's Castle - Castle Oblivion - Destiny Islands - Halloween Town - Kingdom Hearts - Neverland - Olympus Coliseum - The World That Never Was - Twilight Town - Wonderland
Castle That Never Was - Old Mansion
Heart - Heartless - Keyblade - Mission Mode - Nobody - Organization XIII - Organization XIII Device - Replica - Replica Program - Roxas's Diary - Sea-salt ice cream - Chaining - Limit Break
Kingdom Hearts Birth by Sleep & 358/2 Days Original Soundtrack - Sanctuary
Rings - Artwork - Bosses - Enemies - Other Weapons