Mobile King of slimes achievement

[NASA]

Hey guys, om trying to get all the achievements. Well i actually need help with the one named "King of slimes". You need to kill all types of slimes. I think i need to kill only one more and it's the purple smile. I bever saw it on mobile but on terraria Wiki it said that it spawns really rarely. Can you give me tips on how to get a purple smile spawned? Thanks!!!

 

[Unit One]

Hey guys, om trying to get all the achievements. Well i actually need help with the one named "King of slimes". You need to kill all types of slimes. I think i need to kill only one more and it's the purple smile. I bever saw it on mobile but on terraria Wiki it said that it spawns really rarely. Can you give me tips on how to get a purple smile spawned? Thanks!!!

I don't think that I've seen a purple slime on mobile. I've kept an eye out and have still never seen one. I'm not sure if they are left out (intentionally or unintentionally) or if they are super super rare with a wonky spawn rate.

 

[NASA]

Ok thanks anyways!