Metallic Green Gill Grunt
"'Fear the Fish!"
Metallic Green Gill Grunt was released at Toys R Us as a limited edition figure free after you purchased a certain amount of Skylanders Swap Force products at launch. Later, after the time period of free give away, it became available on the online store as well as amounts of stock being released on the shelves. Metallic Green Gill Grunt shows up in game as a regular S2 Gill Grunt but with an added "Special" or "Rare" tag by the name.