Monsters refers to the many antagonistic creatures the player will encounter throughout the game.
Most monsters (with few exceptions) will damage Isaac by either touching him or shooting him with projectiles. Less frequently, monsters will spawn additional, lesser monsters, spread creep, or attempt to affect the player's movement. Along with the more common variety of monsters, champion versions can be found lurking about. These monsters are often like their common counterparts, but have a color tint or size change and drop basic pickups on death. There are also champion versions of most bosses.
There are 197 monsters in total. 39 of them were added in Afterbirth (Ultra Greed Coins counted) and 20 were added in Afterbirth † (12 were added in Booster Packs).
Monster List
Champions
Some monsters can spawn as a Champion which deviates in coloration and size from its more common form. The champion's coloration denotes which peculiar behaviors and traits it will exhibit. Champions will generally drop a pickup (coinciding with the color of the champion) when killed on normal difficulty. However, in hard mode, fewer champions will drop pickups on death. Most champions inflict full heart damage regardless of chapter and have double the health of a normal monster. The likelihood of champions appearing is increased by unlocking the Everything Is Terrible! achievement, by carrying the Purple Heart trinket, by picking up the Champion Belt item, or by playing in hard mode. Champions are generally regarded as more dangerous than common monsters. In addition, all champions will deal contact damage, regardless of what monster they are (e.g. a common Mulligan will not deal contact damage, but champion versions will).
The identifying scheme for champion qualities is as follows:
ID | Appearance | Effect | Drop |
---|---|---|---|
0 | Red |
×2.5 amount of HP. | Heart |
1 | Yellow |
Increased movement and shot speed. | Little battery |
2 | Green |
Leaves green creep as it walks. | Pill |
3 | Orange |
Attacks cause you to drop coins (like Greed or a Hanger). | Coin |
4 | Dark Blue |
None. | 3 blue flies |
5 | Dark Green |
Explodes when killed. | Bomb |
6 | Solid White |
Invincible until all other enemies are killed. | Eternal Heart |
7 | Gray |
Has 2/3 health, but deals double damage. | Key |
8 | Transparent White |
Tears become spectral tears, and it can move past environmental obstacles (such as pits) that it otherwise couldn't when forced. | Golden Chest |
9 | Black |
Fades in and out of visibility, like a Null. | Red Chest |
10 | Pink |
Periodically shoots short-ranged blood shots, similar to Gushers. | Nothing |
11 | Purple |
Pulls Isaac towards itself, like a Gaping Maw. | random Trinket |
12 | Dark Red |
Collapses into a flesh pile upon death and regenerates if not finished off (like a Globin). | 1+1 Free Heart |
13 | Light Blue |
Releases blood shots in 8 directions when killed. | 1/2 heart |
14 | Camouflage |
The enemy blends into the background and briefly becomes visible when damaged. | Rune |
15 | Pulsing Green |
Splits into two copies of itself upon death. | 2 normal versions of itself |
16 | Pulsing Gray |
Repels Isaac's shots when it pulses. | Nothing |
17 | Light White |
Has 1-2 eternal flies circling it. Spawns another fly upon death. | Attack Fly |
18 | Small |
Decreased health, increased speed and increases the pitch of its voice. Smaller and more difficult to hit. | One Makes You Small pill |
19 | Large |
Increased health, decreased speed and decreases the pitch of its voice. Larger and easier to hit. Deals two full hearts of damage. | One Makes You Larger pill |
20 | Pulsing Red |
All other enemies in the room regenerate health rapidly while this enemy is alive. | Heart |
21 | Pulsating |
Spawns an Attack Fly per hit. | 5 blue flies |
22 | Crown |
Increased health. All enemies in the room that are not champions will turn into yellow champions while the crowned enemy is alive. | 2 random pickups |
23 | Skull |
Produces a Necronomicon effect upon death. Deals two full hearts of damage. | Necronomicon effect |
Monster Variants
These uncommon variants may replace common enemies in a room. (Note: Some variants of enemies may not replace other enemies depending on the environment and chapter the player is in.)
Rebirth
Base Monster | Possible Replacements |
---|---|
or | |
or | |
or | |
or | |
or | |
or | |
Afterbirth
Base Monster | Possible Replacements |
---|---|
or | (Burning Basement Only) |
or | (Burning Basement Only) |
(Burning Basement Only) | |
(Flooded Caves Only) | |
or or | (Flooded Caves Only) |
or | (Flooded Caves Only) |
(Dank Depths Only) | |
(Dank Depths Only) | |
or | (Dank Depths Only) |
(Scarred Womb Only) | |
(Scarred Womb Only) | |
or | (Scarred Womb Only) |
Afterbirth †
Base Monster | Possible Replacements |
---|---|
or | |
or | |
or | |
or or | |
(Burning Basement only) | |
(Aprils Fool challenge only) |
The Binding of Isaac: Rebirth |
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