Just some silly tweaks here.
1: Make the blast cubes jelly bombs stick to everything (players and monsters) that they come in contact with.
2: Allow lichen colonies to combine with multiple types of lichens. By this I mean when forming the giant colony, allow quicksilvers, oilers, etc to fuse with the colony, allowing the colony to take on the properties of the combined lichens. (I.E. if an oiler combines with the colony, he'll leave behind oil after every dash, and when he catches fire, he'd go ballistic.)
3: Make a new slime altogether. Basically a giant jelly about the size of 8 jellys combined into a cube, that whenever it's hit it'll split into two jellys that are half the size.
Just some fun little ideas. Feel free to provide feedback.
2. Oilers and quicksilvers can't fuse at all, even with their own type, can they? Only the generic lichen can fuse I thought.
3. I like that idea. Maybe call it a Royal Blast Jelly that explodes into mini-jellies.