Astropolis

Astropolis was a floating space station base that would have appeared in the unreleased Star Fox 2 and its remake Star Fox DS. It sat within the atmosphere of the Lylat System's sun, and was built by Andross as his supreme stronghold. There, which he launched a massive attack on Corneria with several Cannon Destroyer Space Cruisers as well as IPBMs (Inter-Planetary Ballistic Missiles) which where launched from other planets in the Lylat System. It never officially appeared in any other game in the Star Fox series (excluding Star Fox DS).

Star Fox 2/DS
Astropolis' only appearance in a game to date is in the unreleased Star Fox 2. It features as the final level in the near-final version and as the location of the player's fight with Andross. It is only accessible after every other levels in the game has been cleared. Star Fox DS modified Astropolis' appearance from its appearance in Star Fox 2.

Super INFINITY
Astropolis reappears in Super INFINITY and is the part of the Space Stage above the Lylat Star in the Lylat System.

Description & History
Ultimately, The Star Fox team pushed Andross' forces back until at last, after defeating Wolf O'Donnell, they and the rest of the Cornerian Forces were able to launch an offensive on Astropolis. During the attack, one of the Star Fox members (Possibly Fox McCloud) dived deep into the interior and after making their way through the corridors found and confronted Andross' Core Brain. When the Core Brain's automatic defenses failed, Andross himself took control, fleeing into a large chamber in the very center of Astropolis. There he was defeated by Starfox and the entire base began to explode as the Core Brain was destroyed. The Star Fox pilot fled the space station and escaped just as it exploded behind them, the remainder of the base and the forces remaining in it, and possibly Andross himself fell into the sun as Star Fox returned to Corneria.

Trivia

 * In every other game Andross' Base has been on Venom (although he brings himself back to life over Sauria in Star Fox Adventures and was briefly revived as a clone in the prequel manga "Farewell Beloved Falco").
 * In its depiction in Star Fox 2, when the Star Fox team are attacking Astropolis, the beginning of the music is identical to Venom's highway from the Level 2 route in the previous game.