Here's Slimo. Full Form on the left, Slime form on the right. (Sort by Oldest First and please ignore LuigiGuy's comments )

You better not
1. Use my Slime Life
2. Stole my OC details
3. Just those 2

I didn't copy you i used my own ideas. Common Sense.

You better not have stolen some of the slime life, i got my eye on you

I Said, I USED MY OWN IDEAS AND DIDN'T STEAL! YOU GET ME NOW?

“OK, OK”

Forgotten Slime Types

[REDACTED] Slimes hold [REDACTED]. It is the only slime type that isn't connected to Slimo. In fact, they are connected to [REDACTED]'s Assistant, [REDACTED]. It is also the only known Forgotten slime type for now so some information is either incomplete or redacted until we capture a [REDACTED] Slime.

Here are the Exo Slime Types. (Secondary Slime Types)

Brown Slimes hold Earth Magic. They can crush enemies.

Magenta Slimes hold Healing/Cure Magic. They can heal people and can also cure victims of chaos.

Black Slimes hold Dark Magic. They can hinder enemies' sight with their fog.

White Slimes hold Light Magic. They can blind enemies by shining a really bright light from their five eyes.

Gray Slimes hold Summoning Magic. They can summon any creature to attack enemies.

and that's all for the Exo Slimes

These are the 6 main types of slimes.

Red Slimes hold the ability to use fire magic. They can help in burning a villain's base if it's flammable.

Orange Slimes hold the ability to use Gravity Magic. They can change the gravity of objects and people inside a Gravitational Dome (refer to the note below). They can also make themselves float.

(Note: A Gravitational Dome is seen in the image in this comment.)

Yellow Slimes hold the ability to use Electric Magic. They can shock their target(s).

Green Slimes hold the ability to use Nature Magic. They can tangle enemies in their vines.

Blue Slimes hold the ability to use Water Magic. They can either wash away or drown enemies.

Purple Slimes hold the ability to use Wind Magic. They can blow enemies away.

That's all for the main types of slimes.