Missing end islands occur in Minecraft due to a glitch that prevents the generation of the end dimension, leaving only floating obsidian pillars.
Tall ice spikes in Minecraft can reach heights over 50 blocks, but rarely, due to floating blocks causing the ice spikes to stretch upwards.
Glitched pig spawners in Minecraft can occur when a dungeon spawner becomes glitched, resulting in pig spawners instead of the intended mob.
Spawn killing seeds in Minecraft are extremely rare, continuously killing the player upon spawning, making survival impossible.
Bedrock anomalies in Minecraft are anomalies where bedrock generates above its intended level, usually caused by glitched buried treasure chests.