S.T.A.R.

"Who's the flashy black hat?"

- V.I.N.CENT asking about S.T.A.R. S.T.A.R. (also known as Special Troops/Arms Regiment) was the prototype and captain of the Sentry Robots.

Background
According to B.O.B. he was Hans Reinhardt's number one until he built Maximilian, and now commands the Sentry Robots.

V.I.N.CENT first meets S.T.A.R. with other sentry robots practising in a shooting range. He was known to be a sharpshooter, B.O.B. went against him in a game once and beat him. He got so upset he blew a fuse but had his revenge in the end by doing terrible harsh things to B.O.B.

He asked B.O.B. for a re-match and this time he cheated by bumping him allowing him to win. V.I.N.CENT then stepped forward to challenge him and won. At the same time he shot S.T.A.R. in the chest. S.T.A.R. became so furious over losing he once again blew a fuse as V.I.N.CENT mentioned he cannot stand a sore loser.