Combat profile
For Minecraft 26.3 / NeoForge, wave base values and supported behavior can be changed per registry entry: see health, damage and base armor and mob abilities. Tier, size and wave scaling still apply.
Behavior
The separate Flying Creeper walks with IM Creeper behavior, flies over walls when a shorter air path exists, and uses different automatic ignition rules: proximity alone never primes it.
It avoids cats, supports nearby invaders, follows the Nexus route, and commits to exploding when terrain blocks its path. It also ignites after remaining nearly stationary for ten seconds or when close enough to the Nexus. A 40-tick grace period prevents immediate automatic ignition after spawning.
Drops
Normal death loot follows the vanilla Creeper table. A Skeleton or IM Skeleton kill additionally drops one randomly selected classic music disc. Equipment is dropped before an intentional explosion.
Gunpowder • vanilla rates
Classic music disc • Skeleton killVanilla replacement
An active Nexus converts vanilla Creepers into Tier 1 IM Creepers with 30% of their original maximum health.