Darthadi
"At the end of The Force Unleashed II he cuts off Vader's hand and captures him," said Witwer. "I'm not comfortable sharing everything we discussed, but the idea was, that was the biggest mistake ever, and that Vader, like he was toying with Luke, the Force Unleashed I and II games were all about Vader toying with Starkiller. And at some point, there would be a confrontation where Starkiller's fighting Vader, and everything that worked before suddenly isn't working now. He's like, 'I cut off your hand!,' and Vader says, 'That wasn't my hand. I have no hand.'"
Witwer continued, "Starkiller's fighting and Starkiller says, 'How are you doing this?'. Vader answers simply with whatever the first line in the original Star Wars script was, which I believe was, 'I am Lord Darth Vader, Dark Lord of the Sith.' It was something along those lines, and that ends the conversation. He's no match for this guy. There's a little spoiler for an alternate universe."
source: https://www.ign.com/articles/star-wars-empire-strikes-back-wfh-theater-force-unleashed-3-luke-darth-maul
Witwer continued, "Starkiller's fighting and Starkiller says, 'How are you doing this?'. Vader answers simply with whatever the first line in the original Star Wars script was, which I believe was, 'I am Lord Darth Vader, Dark Lord of the Sith.' It was something along those lines, and that ends the conversation. He's no match for this guy. There's a little spoiler for an alternate universe."
source: https://www.ign.com/articles/star-wars-empire-strikes-back-wfh-theater-force-unleashed-3-luke-darth-maul