Team Covert is a team in Sonic Heroes 2. It consists of Ashura, Wechnia, Nazo and Covert; Ashura, Wechnia and Nazo having previously existed as covert glitch characters (hence the team name). Covert is an anthropomorphic parasite who cohabits with Ashura, Wechnia and Nazo in the Labyrinth Zone and collectively form its Minotaur.
The team are nocturnal; in no small part owing to natural adaptation, they are active at night and asleep during the day.
Team Covert are busy assembling new ideas, having just finished a night's work. They have just been booted out of Scrap Brain Zone by Team Babylon. Covert is deep in thought when suddenly an ever acerbic Ashura blurts out her discontent for the Labyrinth and complains that she wants to be somewhere else. Covert tells her to go to sleep while he ponders the idea.
The next night, Covert does not wake up the rest of the team. Instead, he sneaks out. Action stages Spring Yard Zone and Mystic Ruins play, after which he arrives in Mystic Ruins North underground. We see him going right into the underground of the station, whereupon he steers the train right the way into Sunset Park underground. His departure is easier than his entry, though. Egg Pawn, the inhabitant of Sunset Park underground, has been awakened by the racket caused by the train. Very angry over this, it decides not to let Covert out and a boss fight commences between Covert and Egg Pawn.
Realising the time, Covert bolts out of the underground. He bolts out of the emergency exit (created at the time of the erection of the station) and we next see him back in the Labyrinth, the next morning, waking up the rest of the team. (They don't even realise that they've skipped a day.) As a team, they make their way down to Sunset Park underground - this does of course necessitate the team completing Spring Yard Zone, Mystic Ruins, and because the train from Mystic Ruins North to Sunset Park Zone is at Sunset Park Zone, a cutscene shows an extended discussion amongst the team discussing the new hideout. An ever ungrateful Ashura is not too thankful, but fortunately for the sake of Covert's temper both Wechnia and Nazo rate the new plot very highly, preventing a premature explosion. Once at the end, Covert orders the other three to go to sleep and then promptly does so himself.
The next morning, Covert wakes the other three up. He orders them out of the cave for a few minutes while he 'does some stuff'. He picks up a grenade, removes the pin, and times the throw just at the right point such that the explosion happens while the grenade is right at the top of the cave; obviously, at the same time of throwing, Covert also bolts. The result is that a vast majority of the ceiling descends and attacks the floor; while it does so, Covert re-encounters the other three and explains what he has done. True to form, Ashura has no end of complaint about it - too much noise, can't be bothered to sweep up the floor to resolve this issue, too bright in here, etc - but fortunately, Wechnia and Nazo listen to Covert's reasoning before they vent the views and, in the absolute loosest sense of the word, 'authorise' it. From there, Covert builds a ladder up to the ceiling - it now contains a hole, which the team can now get into. The team decide that this is enough for tonight.
We next see Team Covert the next day. But not being woken up by Covert's preternatural, oh no. By being waken up by impending noise. Because the entire team are used to near-silence underground, they are very sensitive to noise underground. As a result, a small amount of noise underground wakes up all of them. Covert overhears something hitting the floor. (He doesn't know that this is Egg Pawn colliding into Big, knocking him over.) He decides to go back to sleep, only to be woken up again. This time, it is by Team Big's approaching. In spite of this potentially being very dangerous considering that if it is light when the team arrive at the surface the team are going to be discovered, Covert decides to wake up the other three and has them shift back to the Labyrinth. On their way out, Covert throws a non-damaging bomb down to the bottom of the staircase, which flashes, thinking that the intruders will be affected. How wrong he is. Team Big are three quarters of the way through the tunnel when the bomb explodes and therefore it only draws attention to the fact that the team have been there.
When the team hits the ground level of Sunset Park Zone, they discover that the time is the nocturnal blue hour and therefore damage limitation has been achieved. In this 'hour', action stages Sunset Park Zone, HydroCity, Marble Garden Zone, Spring Yard Zone and Labyrinth Zone play. Note that at the end of Labyrinth Zone, there is nothing to signify the end of the zone and the team run straight into it, giving the illusion of a cutscene mid-zone when in actual fact the cutscene signifies the end of the zone. At the end of the cutscene, the team head back to sleep. Not for long, though. Covert gets booted out of bed at his usual hour, much to the theoretical besiegement of his calmness. During the short period of time that Covert had, he decided to make his way into the underground path to explore. Stages Underground Zone, Mystic Ruins North, Gigalopolis, Sleeping Egg Zone, Mecha Green Hill Zone and Electric Egg Zone play; similar in vein to Labyrinth, a cutscene designates the end of Electric Egg Zone in which the team bore a hole from about halfway down the tunnel (between Electric Egg Zone and Crystal Egg Zone) and end up back into the Labyrinth. They then proceed to lament their lack of significant discovery and go back to sleep.
They do not complete their day's sleep, however. Halfway through the day, the team hear footsteps - Covert first. (These are the footsteps of Big.) They decide to remain in place instead of bolting (being on their home turf). When Team Big arrive, Covert and Marine start bickering, eventually waking up the rest of the team; it is this final movement which causes filth to hit the fan. A boss fight ensues against the team. After beating Team Big, the team run away out of embarrassment to tell on Team Underground. The team's final movement is to go back to sleep.