Minecraft wiki entry for Ghast, associated text: In English, "ghast" is an archaic word meaning "ghastly".[6] H.P. Lovecraft first coined its use as name for monster (a vaguely humanoid one, in The Dream-Quest of Unknown Kadath), but "ghasts" have appeared in many other fantasy stories and games.
The player can go inside of a ghast by falling through the top of it or flying (or jumping while attacking) up underneath it. If the player stands on top of the head, the player sees inside of it.
If a ghast is trapped in a 1-thick cube, it shoots fireballs through the cube. This is because all mobs that shoot spawn the projectile one block in front of it to prevent the projectile from hitting the mob.
On rare occasions, ghasts spawn in such a way as to see through blocks (usually trapped on all sides in a tight area). When this happens and the ghast has a "line of sight" through those blocks, it launches a fireball in the player's direction. This is reminiscent of a blaze but with explosive addition.
C418 revealed in an AMA on Reddit that ghast sounds are taken from his pet cat, who makes them when disturbed while sleeping.[7]
Two ghasts are featured in the LEGO set "Minecraft Micro World - The Nether", along with a Zombified Piglin.
When killed with its own fireball, a ghast turns orange rather than red.‌[Bedrock Edition only]
Splash potions affect ghasts only when hitting their lower half.
Despite not having visible feet, ghasts are still capable of making footstep sounds.[8]
There is an unused ghast sound called "affectionatescream.ogg" in the game files. It can be heard in the last scene of the Nether Update trailer.
Ghasts use different models between the Java Edition and Bedrock Edition, and some of their tentacles are different lengths.