The Modding of Isaac Wiki
Mega Portal
Boss versus screen image
Base HP Stage HP
200 5
Ingame Appearance
Ingame appearance
Found In
The Caves
Dropped Items
Boss Boss

Mega Portal is one of the bosses that can appear in Chapter 2.


  • Mega Portal has a chance to summon a random boss with a quarter of their normal health, and becomes invincible whilst you fight them.


Fiend App.pngDevil's HarvestFiend App.png
Bosses CacamancerHoneydropMahalathMega BlisterMega PortalPrimordial MonstroTechnopin
Characters Fiend
Items A.V.G.M.Max's Head
Monsters Flying BombDestructorLusty MawMega Blast HostSkullshroomAlium UFOAliumBrain JarElectric EelEvil WormBrimstone WormMinigun WormHoly Brimstone WormSick RoundyFuck Pedestal
Objects Travel Tube
Bosses BossNavImage.png
The Peeping The Peeping
Devil's Harvest CacamancerHoneydropMahalathMega BlisterMega PortalPrimordial MonstroTechnopin
Godmode: Unleashed Souleater
Lunatic Mod Puck
The Ritual MoiraPeePeeDie

Collectible Scissors icon.png The Modding of Isaac Collectible Scissors icon.png

MainPageModdedBosses.png Bosses MainPageChallenges.png Challenges MainPageModdedChapters.png Chapters MainPageModdedCharacters.png Characters Questionmarkisaac.png Curses/Blessings MainPageModdedItems.png Items MainPageModdedMonsters.png Monsters
MainPageModdedObjects.png Objects MainPageModdedPickups.png Pickups MainPageModdedPocketItems.png Pocket Items MainPageModdedRooms.png Rooms MainPageModdedTransformations.png Transformations MainPageModdedTrinkets.png Trinkets MainPageModdedUnlocks.png Unlockables
Collectible Dataminer icon.png Mods Round Worm Trio Monster.png Teams