While completing every side mission and main story religiously in Destroy All Humans! 2 Reprobates, you suddenly make a mistake and forget to complete the optional objectives, preventing you from receiving the full rewards for that mission.
You might be thinking of restarting the game from the start to make flawless progress, but don’t worry. You don’t have to do that, there is a replay mission in the game where you can repeat the mission anytime you want.
How to Replay Missions
To replay the mission, you just need to reach the nearest Saucer’s Landing Area.
Then, call and enter to your saucer. At the menu, there should be an item called Holopox Deck.
Select that, and you’ll be able to select all of the mission you had in the game and repeat it.
Missions you didn’t complete all of the objectives are also marks an red X.