When they approached, they raised their arms—an animation that was removed for years before being reintroduced in later versions like 1.9.
These were not the stealthy bombers we know today. In Survival Test, they had a melee attack and would only explode upon death. minecraft survival test 0.30
Mining iron ore gave you an Iron Block directly. Mining coal resulted in Stone Slabs (half slabs) because coal items hadn't been implemented yet. When they approached, they raised their arms—an animation