It varies depending on whether you are in the investigation or trial, and also the phase of the trial. These are the controls I found, although there may be a few that I missed.
Some of the controls are tied to the plot, so I put them in a section called “Chapter-Specific Controls” at the very end of this list. If you haven’t played the game yet, then don’t read this section.
Investigation (Walking Around)
- WASD – move around
- Left Shift/Mouse scroll – sprint
- Right Click/Enter – open map overlay
- Left Click – inspect
- Q/E – look around
- F1 – open Monopad
- Mouse scroll – select key object (when opening a new area)
Investigation (In Room)
- Hold Right Click and drag mouse – look around
- WASD – look around
- Esc/R – leave room
- E – slap objects around
- Q – return objects to normal
- Left Click – inspect
- Enter – display checkable objects
- F1 – open Monopad
Dialogue
- Space – autoscroll
- Left Click/Enter – advance text
- Hold Left Click – advance text quickly
- Hold Esc – advance text extremely quickly
- F1 – open Monopad
- F2 – open transcript
Death Road of Despair
- A – move left
- D – move right
- Space – jump
Nonstop Debate & Mass Panic Debate
- Mouse scroll – select bullet
- Left Click – silencer
- Repeated Left Click – silence loud voices (MPD only)
- Right Click – shoot
- Space – focus
- F1 – open list of truth bullets
Hangman’s Gambit
- Hold Left Click – reveal letters in the center of the screen
- Right Click – select letter
- F1 – show question
Argument Armament
- W – corresponds to Y
- A – corresponds to X
- S – corresponds to A
- D – corresponds to B
- Space – increase tempo
Debate Scrum
- Scroll – select bullet
- Right Click – match bullet
- W – corresponds to Y
- A – corresponds to X
- S – corresponds to A
- D – corresponds to B
Mind Mine
- Single Left Click – select group of blocks
- 3 Left Clicks – destroy isolated block
- Right Click – select object
- F1 – show question
Psyche Taxi
- A – move left
- D – move right
- W – accelerate
- S – decelerate
- Space – focus
Voting Time
- Mouse scroll/WASD – select character
- Enter – confirm vote
Mono-mono Machine
- Mouse scroll/W/S/up/down – input coins
- Right Click – spin wheel
- F1 – check presents
- Esc/R – return
Casino Game Menus
- A/D – select difficulty
- Mouse scroll/W/S/up/down – input coins
- Right Click – max bet
- Left Click – begin game
Report Card Menu
- Q/E – select student
- Mouse scroll – select section
Skills List
- Left Click – buy/equip skills
- Right Click – switch between skill lists
- Mouse scroll – select skill
Spoiler Alert!
Chapter-Specific Controls
- Left Click – disable trap (Death Road of Despair, in Chapter 5 only)
- Hold left click, then release – disable Exisals (Investigation, in Chapter 6 only)
- Right Click – open skills list (Kaede’s report card, Chapter 1 only)
- Right Click – open skills list (Shuichi’s report card, from Chapter 2 onward)