
The Melonhead is a three cylinder revolver, a primer pin extender resides in the last chamber of each cylinder to allow firing, meaning you have to load the revolver in a very weird way.
The first barrel can store 5 rounds, the last chamber has the firing pin extender. The middle cylinder and the last cylinder must both have thier first chambers empty (where the X mark is) otherwise the gun will explode.
The second barrel can fit 4 rounds and works the same as the first and the final cylinder has 5