Pulsating energy blobs in the old NES game Gradius and its brother Life Force that mimic your ship's actions (i.e. movement and attack). Very useful, as they double and triple your ship's firepower, and can block enemy attacks when positioned correctly.

Options can not be destroyed, but will drift off of the screen upon the destruction of your craft. If you're quick enough, you can recapture them when your ship regenerates.