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So you’ve finally made it to the very final case of theAce Attorney Investigations Collections! This case ends the dramatic mystery that Prosecutor’s Gambit hinges on and sees you unravel many of the questions that you may have even forgotten about until now. It’s a doozy of an episode and will require all of your skills earned so far to complete.
But don’t lose heart! While Turnabout for the Ages has the most brutal mind chess battles and some of the most complex investigations the game has to offer, we’re on hand to offer you a concise, spoiler-free walkthrough to help you solve any problem.

Investigation: Bigg Building Empty Lot
Edgeworth really can’t catch a break, huh? As we always advise, start byexamining the body, and take a closer look at thevictim, the giganticfootprint, and then thehornat the top-right section of the scene.
After examining the body, take a look at the following:
After examining everything,speak to Lotta briefly, and then Penny about everythingshe’s willing to talk about. Afterwards,examine the body againand nowDeduce the horn, using theCreature Feature Flyerto point out a connection. This will unlock a new option with Penny, sotalk to herabout it now.
Combination lock

+
Side gate chain cut

Dented fence
Was he stomped on?

Taurusaurus head
Making these connections will allow you toexamine the stairsthat lead up to the roof of the trailer. While up here, examine the modelhead, the brokentable, and the cans ofpaint thinner.

With this complete,head back down and talk to Lang about every option. When a newcomer shows up,talk to himabout every option he has also.
This completes the investigation, and you know what that means: the first confrontation of the episode.

Cross-Examination: Why I Suspect Gavelle
Cross-Examination: Why I Still Suspect Gavelle
This will end the first section of the case. After the break and the shocking scenes that follow, you’ll be in the courthouse.
Talk to Franziska and Eddie about everything. When you’re asked to suggest who to speak to regarding the missing evidence, presentEustace Winner’sprofile. Before you can do that, though, you’ll meet up with Gavelle herself.

Mind Chess: Verity Gavelle
Make the following decisions:
After learning more about Gavelle and Shaun, you’ll end up with another investigation on your hands.
Investigation: Bigg Building Plaza
As hinted at, the main thing to do here is to talk to people. Chat with theman in the orange jumpsuit(Will Powers), theman in the taxi, and andpolice officer.
Examine theblue truckon the right and then thewhite vanon the left. After gathering clues from both locations,examine the filming equipmentnear the van to finish this part of the investigation.

Tabby Lloydwill show up.Talk to herabout everything you can afterpresenting her with the Behind-the-Scenes Photo, and then make the following logic connections:
Two men

Men in black
Stolen case

No Shaun
The ensuing scenes will lead you to a mini-investigation in a certain murderer’s garage. Examine themotorcycle, thegloveson the floor, the large greencase, and thetoolson the wall.
This will lead to a discovery and then the final round of Mind Chess that the game has to offer.
Mind Chess: Eustace Winner
Make the following choices:
The scenes that follow will take you to a familiar place: thestoreroomat the top of the Bigg Building. Examine theopen safeto progress, and then leave the room through the ladder.
When prompted to suggest how the kidnapper knows so much about you, say that he has beenlistening in on you. Specifically, there’s a bug on theYatagarasu Pin- when examining it,open it from the back.
Investigation: Bigg Building Plaza Pt. 2
Begin this investigation bytalking toTabby, andthen to Gumshoe, who is on all fours near the taxi from earlier. After learning what you’re able to from those two, talk toSimeon, who will have shown up by now.
Afterwards, head into thegarbage disposal areathrough the door next to Regina. Examine thediscarded milk carton, thesign, thefence, and thelock. Quickly head into your logic menu!
Vehicle activity
Garbage disposal area
Exploding sound
Garbage facilities
Near the Coliseum
The scene will quickly shift back to the courtroom.
These events will then lead you to the Middle part of the episode.
Cross-Examination: What Happened While I Was Rehearsing
Investigation: Orphanage Recreation
Begin this investigation by taking a look at thetwo sets of footprintsmentioned earlier, and then look at thebody. Examine thevictim, hiscamera, thecell phone, theyellowflower, and thebrick.
When you’re done with the body, examine theplantersand thepillarnear the orphanage door covered in burn marks.Talk to Langabout his dialogue options, and then start making some connections:
Three footprints
This will change the scene to a new one: that of the kidnapping. Examine the following:
What did Winner dig up?
Missing brick
Brick used in murder
Brick from by snowman
The body was moved
This willupdate the simulationyet again. Examine thechaotic bunch of figuresand then suggest what was faked by presentingMr. Aldown’s Photograph. When prompted to point out where Aldown must have been when he left the voicemail, present theleft-hand lamp just outside the orphanage.
With this fact ascertained,switch the recreation to the moment of Body Discoveryby talking to Kay, and then examine thenow-empty spotwhere Aldown’s body used to be. Examine theblood, and thenDeduce it with the Fireclue you received earlier.
This will complete the investigation, but there are some further steps to take before we can continue. When prompted, know that the item connected to the horn the boy left behind is theTaurusaurus Plushie.
This leads to a series of thrilling revelations and dramatic confrontations, as you might expect.