Phoenix Wright: Ace Attorney Trilogy

Edgeworth may be Phoenix's rival, but he's also his friend. Now, Phoenix is all that stands between Edgeworth and a terrible fate...
Case 4, Turnabout Goodbyes: Day One Investigation

Here's the steps to take to gather all the evidence you'll need for trial - at least for now.

Go to the Detention Center, as always. This is the best place to start. Talk to Edgeworth about everything.
Present your Attorney's Badge from the Court Record to Edgeworth.
That's all for here for now, so head to Gourd Lake Park Entrance. Your old pal Gumshoe is here - talk to him about everything.
Now go to the Gourd Lake Public Beach. Examine the object on the bench - you'll get a Popper item for the Court Record.
Head to the Gourd Lake Woods. Here, examine the camera to kick off a scene.
Meet Lotta Hart. Present the Attorney's Badge to her and she'll be more willing to do. After talking, you'll get Lotta's Camera in your court record.
When you have Lotta's Camera, present it back to Lotta to hear some more from her.
It's time to head to the Criminal Affairs area, via the Police Station entrance. Time for a catch up with Gumshoe. Talk to him about everything and eventually get the Autopsy Report.
Backtrack to the Woods in Gourd Lake and speak to Lotta. She has photos now; take the Lake Photo for your court record.
Go to Gourd Lake Public Beach - Larry is here. Speak to him about everything you can. As part of this, you'll get the Gourdy Artcile for your court record
Now go back to Wright & Co. Law Offices. You need some inspiration, and Maya will get some for you here, giving you a new destination.
Head to the Grossberg Law Offices. Here you'll meet Grossberg. Speak to him about all you can, then present him with the Autopsy Report. You'll get a photo back in return... it's added to your court record - the Misty Fey Photo.
This is what you need. Head back to the Detention Center and present Edgeworth with Misty Fey's Photo. You'll now be able to talk more with him.
Agree to defend Edgeworth in court. You'll get Edgeworth's Request in your court record as a result.
Once you get a chance to meet Gumshoe, chat to him again - then present him with Edgeworth's Request.

Case 4, Turnabout Goodbyes Trial: Day Two

After an exposition dump about who your rival is this time - the formidable Manfred von Karma - it's time for trial.

At the opening of the trial, the crime will be summarized. As a result you'll get the Overhead Map in your court record.

Gumshoe's Testimony - The Arrest of Edgeworth: Witness Cross-Examination

Press Gumshoe on his 5th statement. You'll get the Pistol Bullet in your court record.
Press Gumshoe on his 6th statement. He adds a new statement.
Press Gumshoe on this new statement "The murder weapon we found..."

Already a recess. In Recess, be sure to tell Maya "I need you here" when she doubts herself. Back in Court, Lotta is on the stand.

Lotta's Testimony: Witness Cross-Examination

Listen to Lotta's testimony. Von Karma is threatening you. When prompted, say "I think there was" regarding contradictions.
Press Lotta on every single statement except her 1st. Whenever you can, press further and harder.
Von Karma will suggest that it's time to declare a verdict. Say "Wrong". Lotta makes one new statement.
At this new statement "I saw it clear as day...", present the Lake Photo.

Lotta's Testimony - How Edgeworth was Seen: Witness Cross-Examination

Press Lotta on her third statement. Press further, even when the game warns you otherwise.
Lotta adds a revised statement now. ("The camera was set up...") Present Lotta's Camera on this statement.
When asked, choose Show Evidence and then present the Gourdy Article.
Lotta will ask you for proof. Say "I have proof" and then once again present Lotta's Camera.

Lotta's New Testimony: Witness Cross-Examination

On Lotta's 7th statement, present the Gourdy Article evidence.
When prompted, select Make her show the enlargement.
When given the option again, choose to Object to the enlargement
On the photo, point to the shooter's hand and present it. Then, present the Pistol to the court.
When asked, reply "The Victim Himself". As this stage of the trial ends, you'll get the Lotta's Disposition evidence.

Case 4, Turnabout Goodbyes: Day Two Investigation

Here's the steps to take to gather all the evidence you'll need for trial - at least for now.

At the Detention Center you'll have a chance to review where you stand. Do that.
Move through the various Gourd Lake areas, making your way to the Woods. Gumshoe is here. Have a chat with him.
Head back to the Detention Center to get Maya.
Go back to the Gourd Lake Entrance. Lotta is here again now, and wants to talk. When prompted, choose to make a Deal.
Go to Gourd Lake Public Beach. Larry is here (alongside a familiar-looking balloon). Chat to Larry.
Back at the Criminal Affairs Dept, you can catch up with Gumshoe again. He offers you one of three 'secret weapons'. Here's what they do:
The Dog can be taken to the beach for some fun story shenanigans, but nothing to do with the case.
The Fishing Rod can be used in the Beach Woods for another hidden scene.
The Metal Detector is the one you actually want, and gets added to the court record.
From the Public Beach, head to the Boat Rental Shop. The metal detector is going nuts. You'll find the Air Tank item.
Out at the Public Beach, present the Air Tank to Larry. When he asks why he'd need it, tell him "To inflate something". Press every line of questioning with Larry until none are left.
Head to Gourd Lake Woods. Lotta is here. Tell her "Gourdy doesn't exist", and show her the proof - the Air Tank.
Chat to Lotta now, and you'll get the Second Lake Photo evidence.
Now go to the Boat Rental Shop and then, past it, the Caretaker's Shack. There's an old man in here. Speak to him. It's going nowhere fast.
Present the old man with your Attorney's Badge, and then promise to run the 'Wet Noodle' (his shop)
Now you can present useful stuff. Present the Lake Photo and he'll give you more information.
Examine Polly the Parrot to have her added to the court record. Talk to the old man about Polly.
Head back to the Criminal Affairs Department and meet Gumshow again. Present him with Polly the Parrot.
With Gumshoe's permission, you can now use the Records Room. Use this private space to go over the case with Maya - that'll get you the DL-6 Case File and DL-6 Incident Photo for your court record. Curious...

Case 4, Turnabout Goodbyes Trial: Day Three

You're thrown right into things now. When you get the chance, Raise an Objection. Next, the caretaker will step up to testify.

The Caretaker's Testimony - The Night of the Murder: Witness Cross-Examination

When asked, obviously choose to cross-examine.
Press the caretaker on his 6th statement.
Press again on the revised statement. Then raise an objection when you can.
You'll now get a much-needed recess after some courtroom drama. Next you're back in court, Larry Butz takes to the stand once more...

Larry's Testimony - The Night of the Murder: Witness Cross-Examination

Present Lotta's Deposition against the 6th statement Larry makes.
Allow Larry to continue testifying when prompted.

Larry's Testimony - What Larry Heard: Witness Cross-Examination

Press Larry on his 5th and final statement in this testimony.
When prompted, tell the judge "We should care."
Larry adds a statement ("Just when she said...") Present either the Lake Photo or Lotta's Deposition to that statement.
When the judge asks your opinion, say "Larry's right".

Larry's more or less out of the picture now. It becomes a back-and-forth:

Now, present the Second Lake Photo.
Follow that up by presenting the Pistol.
When asked who the figures are, answer "Edgeworth and the murderer"
But when asked the Murderer's identity, say "I don't know."
When you're examining the map of the area, point to the Boat Shop and present it.
When the judge asks for an identity, say "The Boat Shop Caretaker" followed by "To create a witness."
You've bought a literal stay of execution. Time for more investigation:

Case 4, Turnabout Goodbyes: Day Three Investigation

Here's the steps to take to gather all the evidence you'll need for trial - at least for now.

You'll kick off in your office, and you've got a lot to think about. Larry arrives - talk to him first, and exhaust all options.
Go to the Detention Center and have your traditional post-trial catch-up with your defendant.
Once you've spoken to Edgeworth, head to Gourd Lake Entrance and meet up with Gumshoe.
Head to the Boat Rental Shop this time. Grossberg is here.
Next, go to the Caretaker's Shack. There's a green save above the TV - examine it and you'll get the Letter from the Safe in your Court Record.
With the letter in hand, go back to the Detention Center and chat to Edgeworth more. Present the Letter from the Safe to him. You can now speak about more topics.
Head to Grossberg Law Offices. Speak to Grossberg about everything you can, then Present him with the Letter from the Safe to unlock yet more topics.
Now go to the Records Room in the Criminal Affairs Department. Von Karma is here - the enemy. Chat to him all the same.
Present the Letter from the Safe to Von Karma - and after some events, you'll get the DL-6 Bullet evidence in your court record.

Case 4, Turnabout Goodbyes Trial: Day Four

The Caretaker's Testimony - Why I Left Court: Witness Cross-Examination

Press the Caretaker on his 4th and the final statements of his testinomy.
You'll be asked for the man's name. Answer "Yanni Yogi".
When prompted, say "Yes, I'm doing it."

Polly's Testimony - Who is Your Owner?: Witness Cross-Examination

Press Polly the Parrot on her 1st statement.
Try asking the parrot "Have we forgotten something?"
This time, try asking "What's your name?"
Tell the judge "Of Course" and when promtped, present the DL-6 Case File.
The Judge wants a page - tell him Suspect Data.
You're back to the testimony. This time, press Polly on the 1st statement and ask "What's the safe number?"
When the Judge queries, say "Actually, it does."
Prompted for proof, present the DL-6 Case File once again, this time pointing to the Case Summary page (page 1)

Major events now unfold. When they're over, you'll find Edgeworth on the stand.

Edgeworth's Testimony - The DL-6 Incident: Witness Cross-Examination

Here we go. This is it. Present the DL-6 Case File evidence on the 6th statement. The page you want is Victim Data.
When Von Karma makes a claim, say Yes and then present the DL-6 Incident Photo as your proof. Point to the bullet hole in the door.
Some events will happen now. When you next get the chance to pipe up, say "The murderer didn't need it."
There'll be more drama. When you get a chance, Show Evidence. Present the Metal Detector. Do you see where this is going?
When you get the chance, Present the DL-6 Bullet.

Once the trial is over, present Maya with the DL-6 Bullet.

Not my guide, thanks to rpgsite.net