I have maybe a solution.
First I have to create an enemy, ill call it "Lava"
I do not had lava sprites, OKAY ?!?
Hem-
So yeah, I made in sort this enemy is flying, can pass throught walls, is invincible, and had a jump proof, so the player do make him damages, but can't bounce on him.
So after that, I just have to place some into my level.
why that picture is so ugly ?!?Test it, we will have enemies that goes up and down following a cycle, like lava.
Tought we cannot add the other lava parts,otherwise it would be glitchy. so we really need moving lava.