The Omega Stabilizer is a ship part found in Pikmin. It is one of the vital parts of the S.S. Dolphin and Captain Olimar is unable to leave the planet without it.
How to Get
The Omega Stabilizer is found in the Forest Navel where it is held by the Puffstool, killing the Boss is mandatory to retrieve it.
"I've found the Omega Stabilizer! I absolutely must have this piece if my battered ship is ever to fly straight again. It has steered me through countless deep space storms. That, and it looks rather cool."
"This is the Dolphin's fin. It is a little beaten up, but it should still function. I've made great strides in repairing the Dolphin! With this, I should be able to fly again-even if I don't recover all 30 parts."