 The Ace Attorney Investigations spin @-@ off series splits the gameplay into investigation phases and rebuttal phases , the latter of which is similar to the courtroom trials of the main series . During the investigation phases , the player searches for evidence and talks to witnesses and suspects . Things the player character notices in the environment are saved as thoughts ; the player can use the " logic " system to connect two such thoughts to gain access to new information . At some points , the player can create hologram reproductions of the crime scene , through which they can discover new information that would otherwise be hidden . Ace Attorney Investigations 2 introduces " logic chess " , where the player <unk> witnesses in a timed sequence that is visualized as a game of chess , with the player aiming to destroy the other character 's chess pieces . To do this , they need to build up their advantage in the discussion by alternating between speaking and listening , and then choose to go on the offensive . 
