When you get into the ship you will have to do some Frieza missions.
Frieza Mission 1 – You will have to defeat all Frieza’s underlings in 3 minutes to pass. These guys are really weak and you shouldn’t have any trouble defeating them in 3 minutes. They don’t really dodge Ultimate attacks so spam those if you have to. For winning you will get the Training Suit(Ginyu force). After the mission you can pick either Zarbon or Dodoria
as your senior officer.
Frieza Mission 2 – After you do the Zarbon/Dodoria mission and the Ginyu Missions you will be working for Frieza again. His first mission is to take down Cooler. Frieza will join you for the fight, you and him vs Cooler and some Time Patrollers. You will unlock the Battle Suit(Ginyu Force) for winning. He also gave me As If I’d Lose Super Soul after the fight.
Frieza Mission 3 – This is the mission to become Frieza’s second in command, you vs Final Form Frieza.
Frieza Mission 4 – It’s pretty much the same as the last mission.
Frieza Mission 5 – Same thing, different planet.
Frieza Mission 6 – This is another Frieza fight but when you win you get a Hero Suit (Ginyu Force). Frieza also goes Golden after the fight, and you finish his missions. Talk to Navel after that and he will give you a Time Egg.
Cooler Missions – I can’t do Cooler missions because I picked Frieza after the Ginyu Missions(Thanks KotovBestPony) but my guess is, after you beat all his missions you get an egg as well. It would be really silly to not let one side get the egg, it unlocks a couple of bonus levels later in the game. Thanks to Ultimatedbzkid for bringing that to my attention, I didn’t even know you could join Cooler.
Choosing Zarbon Or Dodoria? – Whoever you pick will be the guy you now get missions from. Zarbon fights Dodoria and Dodoria fights Zarbon. If you join Zarbon you also work with Frieza later, Dodoria must be Cooler.