This star, inspired in the Super Mario Land 2, moves following a "infinity" curve. It's indestructible unless hit while Mario has star power. If the extra bit is set, the star will explode after a set amount of cycles.
I dunno why it moves away from player when it appears, there's a chance of it going offscreen and disappearing. I've swapped X-speed values so it moves towards player on spawn. Also I noticed graphical glitch where if it's dead while it was about to explode (changing palette) it's graphics will rapidly change between dead and not dead frames.
This is a unique sprite due to it's movement pattern. It's like wavy eerie but ranged.