Zol

The Zol is a monster found throughout various Legend of Zelda games. A Zol is a larger version of a Gel, and can often be distinguished by its red color. When cut with a sword, a Zol will split into two Gels. Aside from being able to split, Zols and Gels are identical in nature.

Gels are simple green blob-like enemies with two eyes. Gels often hide between the tiles of dungeon floors, waiting to pop out and jump at adventurers. However, they are rather weak, usually dying to a single attack, and hardly causing even a full heart of damage.

The Legend of Zelda
Zols are color-coordinated with the dungeons they appear in. For example, Zols in the golden colored dungeons are dark brown, and Zols in the green dungeons are forest green. They wander aimlessly in a linear pattern, and are slow moving. If struck with a weak weapon, such as the Wooden Sword or Candle fire, they split into two Gels. A weapon with strength equivalent to or greater than the White Sword destroys a Zol instantly.

A Link to the Past
Zols come in two different colors, green and red, but are equal in abilities. They hide under the ground, appearing only as shadows before leaping up to attack. Zols are a very weak enemy, able only to jump into Link in an attempt to cause minor damage. They only appear in dungeons and caves, never out in the Overworld. If Link sprinkles magic powder on them, they turn into bouncing onion creatures.

Link's Awakening
There exist two different types of Gels, both of which behaved differently. The green Gels hid in the floor and attacked when Link got close to them. These moved in a jumping manner and would never divide themselves. The red Gels however, were different in that they were always visible and considerably slower than their green-hued cousins. If hit with the sword, the red Gels would divide into two smaller, but also red-hued Gels. These could cause no damage, but attach to Link and slow him down so that other enemies would be able to hurt him. However, with a strong enough sword, one could eradicate the Gel without fear of it dividing.