Magma Cubes are hostile mobs and a variant of slimes that appear in Minecraft: Story Mode Season Two. They first appear as a mob head in "Hero in Residence" and appear physically in "Below the Bedrock". They spawn exclusively in the Nether, and like all types of slimes, they come in three size variations.
- In "Hero in Residence", a few magma cube mob heads appear in Jack & Nurm's Adventure Emporium.
- In "Below the Bedrock", magma cubes, along with magma golems, appeared during Romeo's challenge room in Romeoburg.
- Although they only spawn in the Nether, they have not been seen there in the game. This also applies to blazes.
- The magma cubes in "Below the Bedrock" have a unique design on the top of their heads, and also turn to cobblestone when hit with water; this is not seen in Minecraft.