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#388Key Bum"He wants your keys!"Familiar
Spawns a familiar that follows Isaac and collects keys. It has a 20% chance of dropping a random chest upon collecting a key.

Picking up a Charged Key will make Key Bum spawn a Lil' Battery.

Key Bum cannot pick up Golden Keys.

This item contributes towards the Super Bum transformation. Collecting 3 items from this set will transform Isaac's bums into Super Bum, a familiar that collects coins, red hearts and keys, and drops twice as many rewards.
Unlock: Defeat Ultra Greed as Lazarus.

- Tags -- Synergies -- Links -

▾ITEMS ()▾

D infinityDogmaJar of WispsFlipEverything JarFiddle CubeDogboardGhastly Flame

▾TRINKETS ()▾

Extra VesselVessel RockDogrock RockSand CastleFractal Geode

▾PICKUPS ()▾

HeartHeart (half)Heart (soul)Heart (eternal)Heart (double)Black HeartGold HeartHeart (half soul)Scared HeartBlended HeartBone HeartRotten HeartPennyNickelDimeDouble PennyLucky PennySticky NickelGolden PennyKeyGolden KeyKey RingCharged KeyGolden BombGolden Troll BombGiga BombMega ChestMom's ChestMega BatteryGolden BatteryHalf Black HeartBlended Black HeartHalf Immoral HeartImmoral HeartBlended Immoral HeartMorbid HeartTwo-Thirds Morbid HeartThird Morbid HeartFull Eternal HeartDouble Full Eternal HeartCursed PennyGolden Cursed PennyHaunted PennyHoney PennyLego StudTokenCharged Spicy KeySuper Charged Spicy KeyFirework BatteryVirtuous BatteryBlood SackDire Chest

▾CONSUMABLES ()▾

HagalazJeraEhwazDagazAnsuzPerthroBerkanoAlgizGolden PillGolden Horse PillStorage BatteryCorroded Battery

▾MACHINES/BEGGARS ()▾

Slot MachineBlood Donation MachineFortune Telling MachineBeggarDevil BeggarShell GameKey MasterDonation MachineBomb BumShop Restock MachineGreed Donation MachineMom's Dressing TableBattery BumHell GameCrane GameConfessionalRotten BeggarMining MachineBismuth BeggarSourpussUnfinished GolemGeode GolemBabiMidarizerSweetpussBlacksmithZodiac BeggarRobot TellerEvil BeggarFake BeggarDealerCell GameHug BeggarCosplay BeggarPhone BoothGolden Slot MachineJukeboxVending MachinePoker TableGrid Restock MachineRevending MachineVanity StatwheelSewing Machine

▾CHARACTERS ()▾

MagdaleneSamsonAzazelLilithBethanyTainted MagdaleneTainted EveTainted LilithTainted Bethany

▾CURSES ()▾

▾OTHER ()▾

Pact of ChampionsPact of FragilityPact of FrostPact of GroundingPact of HemorrhagePact of Ice WraithPact of MasochismPact of MischiefPact of MitosisPact of ParanoiaPact of PerilPact of PunishmentPact of PurgatoryPact of RevivalPact of Scarcity