well, u cannot really draw the skin and import it into the game ... perhaps this feature to crop skin parts to ur player might be for PB3 skin editor but the game would not be released sooner...
the only way to make the skin in PB2 is just by mixing up body parts of the game by using a bunch of trigger actions ... however, u need to have some knowledge on being able to deal with triggers and trigger actions and how to activate those triggers, and for sure not having errors....
for this trigger here is how the parameters are translated:
The trigger action: Change Head or body or legs or arms...
The parameter *A: refers to the player
The parameter *B: refers to the body part
but anyways if u wanna create an actual Plazma burst 2 artwork that supposed to be skin then u can use an app that can draw multiple shapes that can be combined to make body parts that can be joined together to make a suitable skin for the style but u need to have good art skills and practiced but still, unfortunately, u cannot upload the skin art to be in the game but anyways here's
inkscape download linkmight as well use a template of skin if ur still a beginner at making up characters...
view template