The Straightbullet is a Crasher, not a boss, but somehow it doesn't show the Boss Detail Title as it should, and the Boss Detail Title is for bosses and enemies.
Design[]
It's a light yellow coloured version of the egg.
Technical[]
It first locks on you like how every crasher does but the more closer the Straighbullet approaches the locked spot, the more slower it gets and stops, and continues to lock on your next position.
Phases[]
Phase 1: As a small Straightbullet.
Phase 2: A slightly bigger Straightbullet.
Phase 3: A slightly bigger Straightbullet called a Drifter that sometimes with an Auto-turret or spinning with 2 turrets, like from a Crasher to a Sentry.



