Level Warps:
There are various parts of different levels thaqt serve as warp points. If you shoot/ go through warp poits, you will be transported to a secret level. Defeat the secret level to be transported to another level on the map.

Katina - Go through all the Warp Points on Meteo
Sector Z - Go through all the Warp Points on Sector X

Character Appearances:
Certain characters will appear to assist you, depending on the order that you beat the levels

Bill in Sector X - Beat Katina
Katt in Macbeth - Beat Zoness

Sound Test:
You can listen to the sound effects of the game under the main menu after unlocking expert mode.

Special Level Conditions:
In order to reach certain levels, you must complete a few tasks in various levels.

Area 6 - Destroy all the missiles at Sector Z
Area 6 - Turn all the switches on Macbeth
Sector Z - Warp at Sector X
Sector X - Don't defeat the boss at Katina
Solar - Defeat the boss at Katina
Katina - Use the warp at Meteo
Aquas - More than 100 points in Sector Y
Sector Y - Fly through all the rock arches, then follow Falco through the waterfall, then defeat the boss

Wolfen in Training Mode:
Fight Wolfen in training mode - Destroy 100 enemies

Medals:
To unlock a medal in each level you will need to keep each of your wingmen alive and destroy a set amount of enemies in each level.

Medal in Corneria - Destroy 150
Medal in Meteo - Destroy 200
Medal in Sector Y - Destroy 150
Medal in Fortuna - Destroy 50
Medal in Katina - Destroy 150
Medal in Aquas - Destroy 150
Medal in Sector X - Destroy 200
Medal in Solar - Destroy 100
Medal in Zones - Destroy 250
Medal in Sector Z - Destroy 100
Medal in Macbeth - Destroy 150
Medal in Area 6 - Destroy 300
Medal in Bolse - Destroy 150
Medal in Venom 1 or 2 - Destroy 200

Artwork:
You can view two different pieces of artwork for beating Venom on expert mode. The artwork you see depends whether you beat Venom on the easy path or hard.

A never ending versus match:
Normally a game will end when one player reaches the ammount of points he is supposed to get. However, if you have a game of 3-4 players, and your person has 2 kills(you have to get 3 to win), if that person kills two people at once, it skips the 3 and goes to 4, thus messing up the counter, and the game will never end untill you reset the game.

Full Shadow:
In versus mode if you destroy both of your wings, you will still see the full shadow of the Arwing.

Untouchable in VS mode:
In VS mode, use the arwing and go up as high as you possibly can. Then, do a U-Turn (Down + C-down). The moment your energy comes back up for you to do another U-Turn, do it immediately. Keep doing U-Turns until your arwing is so far up, it's no longer on the screen. Players might see or lock onto you, but they won't be able to hit you. (Note: If you start coming down after executing the glitch, the terrain gets all messed up)