Pinkymod/Runin Slime

The Runin Slime is a Pre-Hardmode found in the Underground of. It jumps at the player to deal contact damage like any other Slime.

Bestiary Entry
Slime' that originates from an off-shore island, probably the same as Kobblins. The rock that their body composes of is a special compound known as Runin. Aside from being overgrown, they are also teeming with creepy-crawlies. So even if a Runin Slime somehow does not attempt to immediately crush you upon sight, it is not wise to touch them.

Runin Slimes appear to be cultivators of Soulblossom seeds. Occassionally, cracking open one will reveal some seeds, ready to plant.