Slime Grimes have a similar appearance to Jelly Cube, but they are much smaller.
When Finn begins fighting the Slime Grimes, it is revealed that they are able to shoot acid out of their mouths.
Holding Items In Their Bodies
When they are first seen, it was shown that they have the ability to hold items in their body. These include pieces of armor, weapons, and even food, as seen with the chicken.
- It is possible that they are some form of Slime People.