Minions

Minions are small pill shaped creatures that are indestructible and yellow. They love bananas, science, mischief, and explosive. Minions are considered the "Cutest but mischievous creatures on Earth" which is true which explains their behavior. None are female, and cannot be destroyed.

Minions (In categories): http://minion-fandompedia.wikia.com/wiki/Category:Minions

And also, there are 3 types of minions: Yellow, Purple (PX-41), and Blue.