Developer SuperBot has worked "really closely" with Irrational in bringing the Big Daddy and Little Sister characters to multi universe brawler PlayStation All-Stars, game director Omar Kendall has told Polygon.

In fact, the team has worked so closely with the BioShock creators that Ken Levine even penned the script for the two characters.

"When it came to the script writing, Ken Levine, who is the creative director at Irrational, actually took over writing duties and wrote every line of script and dialogue for Big Daddy and Little Sister in the game," explained Kendall.

He added: "We take this very seriously, and sometimes the IP holders know best, and obviously we want to present the characters in the best way for the developers and the fans."

PlayStation All-Stars will be released for PS3 and PS Vita on November 23.