Aurora Unit 313

First Form

Discovered by Prime Hunter

In order to easily avoid the missiles AU shoots at you once it lands, simply continue boosting around the outside of the arena for a few seconds.

If you have good timing, shooting a Hyper Missile in front of a DS Clone in morph ball mode will most likely kill it in one shot.

Appendage by Samus Rox: You don't need to shoot a hyper missile, just one shot will do it.

Second Form

Discovered by PessimistByNature

If you screw attack the head, it will stun AU 313 in one hit.

While AU 313 is spinning on the ground, a screw attack will damage it and stop it from spinning.

-this does not work, at least not on hyper-difficulty. A screw attack will damage it, if you hit it in the back on the weak spot. SA'ing into the front of the creature causes samus to unmorph and land on the ground, causing no damage to the AU or to herself, in any event, I was unable to stun it while it was spinning on the ground by SA'ing into it. -Granto