Legacy:King Slime
On the
Old-gen console version and Nintendo version, King Slime lacks a crown and instead resembles a giant Blue Slime.
Besides Lepus(3DS version), he is the only boss who takes damage from lava.
(Old-gen console and 3DS versions) King Slime does not travel or fire through blocks, which creates shielding or trapping possibilities that do not exist when battling most other bosses (though traveling too far from a trapped King Slime can cause him to teleport out).
Due to the high number of Blue Slimes spawned during the fight, summoning King Slime while in specific areas can be a quick, easy way to farm for specific drops such as Biome Key Molds(Old-gen console and 3DS versions).
In the
Old-gen console and versions, he is the only boss to drop a banner.
King Slime's Expert Mode features are not present on these versions.