Acting for Two: He does all of the voices for every character as much as possible in the games he plays, so this is a given.
Bonus Episode: Failed recordings are often uploaded as such. Same with his streams of the races with SuperLPHeroes as they often contain the "behind the scenes" interactions with the group between recording sessions.
Throw It In!: In general, he tends to ad-lib a lot for various characters.
A slip of the tongue ends up with King Edward of Illusion of Gaia being given the voice of Elmer Fudd.
In general, if a character initially appears with their name as "????" he'll pick some random voice/impression and give that character that same voice for the rest of a run, no matter how properly/poorly it fits.
Soma calling J "Mister J" during the latter's introductory scene in his Aria of Sorrow Randomizer run prompts giving Soma the voice of Harley Quinn for the rest of the run.
