General Pepper's Flight Log, pg 60
Corneria's main battle fleet has suffered severe losses in Sector Y! A huge space battle has left our flagship crippled- or perhaps worse. Debriefed survivors have informed us about a new attack squadron of gigantic humanoid battle suits in the area. Although it may be too late to rescue our fleet from disaster, we need you to get in there and take out Andross's new iron soldiers! Their shields will deflect anything but a direct hit, so aim carefully! They are of course, accompanied by star fighters that will keep you on your toes.
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Sector Y is one of three strange nebula located in the Lylat System, named for the strange unknown formation of the shape creating the letter Y. Because of Sector Y's closeness to Corneria, the sector was the location of a major battle between Corneria's main battle fleet and Andross's overwhelming space forces during the Lylat Wars and later battles.


Astronomical Data
A great cloud of space dust has formed in the shape of the letter Y in this Sector. As in Sector X, there is strange radiation and magnetic waves in this area, but the fluctuations are not as severe. Casual travel through the area is still not recommended..
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Sector Y is part of a trio of nebulae that appear in the shape of a letter, itself formed in the shape of a giant Y. Though not as severe as those found in Sector X, radiation storms and fluctuating magnetic waves make travel through this sector dangerous, as the ionized space dust causes equipment malfunction or failure in most ships. It is thought by some scientists that the harsh state of Sector Y is the result of a failed Bolse satellite that underwent nuclear meltdown, polluting the sector with the radioactive fallout.


Lylat Wars

Lylat Datalink; The battleship graveyard, pg 63
Sector Y is a mysterious zone haunted by conflicting storms of radiation and magnetic energy. The space dust that ionises the sector tends to cause the equipment of most space craft to malfunction or fail. Sector Y renders most ships helpless, leaving them victims to space pirates and Venom's armies. Usually, pilots wisely steer clear of the eerie vacuum, but those who dare to enter rarely escape. Scientists attribute much of the existence of the Sector Y phenomenon on a failed Bolse satellite prototype that underwent a nuclear meltdown and polluted the zone with its radioactive remains.
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During the course of the Lylat Wars, the main Cornerian battle fleet engaged in a desperate melee with Venomian forces at Sector Y. The fleet took heavy losses when Andross' latest invention, large humanoid battle suits, were employed en masse to devastating effect. Highly maneuverable and protected by thick physical shields plus wielding laser pistols, the robot troopers supported by the Dorisby and Grazan-class capital ships threatened to overwhelm the Cornerian fleet, four of which were able to outgun, overwhelm and obliterate the Cornerian Flagship, regardless of the Flagship putting up enough of a fight to take out one Trooper.

The timely arrival of the Star Fox Team saved the Cornerian fleet from certain destruction. Plowing through the enemy fleet, the team confronted the flagship Saruzin, protected by two advanced Shogun Warriors and the Shogun Warlord itself. Fox McCloud succeeded in destroying the giant robots, breaking the back of the attacking fleet. The Cornerian Army was able to mop up the remaining enemies.

Aparoid Invasion

During the Aparoid Invasion, Pigma Dengar, who was being pursued by the Star Fox team, fled into Sector Y after escaping through the nearby asteroid field. The team caught up with him and destroyed the Aparoidedation-infected Pigma.

Anglar Blitz

The Star Fox team again fought at Sector Y during the final moments of the Anglar invasion of the Lylat System. Together, Fox, Falco Lombardi and ROB tracked Wolf O'Donnell to Sector Y, after he previously abandoned them after they left Titania, as he stole the Anglar device made by Andross and intended to neutralize the Venom Sea and wipe out the Anglar to try and clear the bounties on the Star Wolf team.

However, it revealed was a trap as the Great Fox's crew were surrounded by Anglar forces and the "Ghost" of Pigma, who made a deal with his old team to try and stall the Star Fox team. This delay allowed the Star Wolf team to sterilize the toxic wasteland of Venom into a mild climated paradise and destroy the Anglars and their Emperor. Gripped with despair by Star Wolf stealing his role of galactic hero and Krystal's loyalty, Fox invited Falco to retire with him to Papetoon to drown his grief. 

In the Comic

In the Star Fox comic adaptation, the bonus blue Whale that flies across the sky if Fox does not harm any of the native creatures is depicted as the transdimensional manifestation of a starship. Fox's father was transported to another dimension, where he helped the crew learn the language of Lylat. As he is now a part of their dimension, he cannot cross back and resume his old life.

Names in Other Languages

Language Name
Japanese (セクターY, Sekutā Wai)