Gradual Infiltration, or A-Bonus, is the first bonus mission of Luigi's Mansion: Dark Moon. This mission can only be unlocked after collecting all of the Boos in the Gloomy Manor. Even though these missions do not have a time limit, Luigi still aims to be speedy, as it will increase his score.
These missions do not have any Boos to collect.

For the gem locations, go here.
Mission Blurb[]
"We have an...interesting situation. The Parascope is picking up mild paranormal signals in the manor. I'm sending you in to investigate."
Starting Dialogue[]
"Hey, youngster. We've got an unexpected development at the Gloomy Manor. Just when we thought it was finally free of ghosts, the Parascope picked up more paranormal signals. It's got to be ghosts, but I have no idea where they're coming from! In any case, they're probably up to no good, so we need to capture them. I'll pixelate you back to Gloomy Manor, and we'll take it from there. Sound good? No? Well...think of it as character building. OK, off you go!"
Mission Goals[]
Overall Goal[]
- A group of ghosts have returned to the Gloomy Manor! Catch all of the ghosts as quickly as possible.
Other Goals[]
- Capture all the ghosts as soon as possible!
Walkthrough[]

Luigi confronting two Greenies and a Slammer.
"Alright Luigi. I've got a reading on the ghosts. Check your map." After E. Gadd tells you where the ghosts are, it's your job to capture them. Since the rooms with ghosts in them are randomized, one should just follow E. Gadd's map and capture ghosts from there.
Luckily, the mansion is free from all the webs that were burned in Sticky Situation, so running around the mansion is no trouble.
Rooms[]
Here are a list of rooms that may be infested with ghosts. Only six of these rooms are randomly selected every time this mission is played.
Messages[]
When clearing the Gloomy Manor of ghosts, what E. Gadd will say to Luigi at the end of the mission differs depending how quickly Luigi completes it:
"That'll do, Luigi! You weren't exactly quick about it, but you caught 'em all. Anyhoo, let's bring you back!" (Time over 4 minutes)
"Excellent, Luigi! You got all of 'em! That was really fast! The very definition of posthaste! Heh heh... Let's bring you back!" (Time under 4 minutes)
After Mission Dialogue[]
"Glad you made it back safely, Luigi! There were more ghosts up there than I originally anticipated."
"Those ghosts were no match for you, young feller. No match at all. But don't get too confident, son. You can't afford to let your guard down with all these ghosts about. Anyhoo... I still have no idea what triggered the ghost resurgence. The scientific method doesn't exactly apply to paranormal phenomena, you know. That said, there's no mystery that science can't eventually solve!"
Names in other languages[]
Language | Name | Meaning |
---|---|---|
Japanese | オバケ大発生じゃ~! Obake dai hassei ja! |
|
Spanish | Infiltración gradual | Gradual Infiltration |
French | La grande invasion | The Great Invasion |
Dutch | Stiekeme infiltratie | Sneaky Infiltration |
German | Operation Gänsehaut | Operation Goose-Bumps |
Italian | Infiltrazione graduale | Gradual Infiltration |
Chinese | 鬼怪大量出现~! (Simplified) Guǐguài dàliàng chūxiàn! 鬼怪大量出現~! (Traditional) Guǐguài dàliàng chūxiàn! |
Trivia[]
- The music on the bonus missions is a remixed version of the Library piano, when the Poltergeist is playing, fit to set the theme of the mansion.
Gloomy Manor |
---|
![]() Click on a Mission |