Mutated Steve (Resident Evil Code: Veronica)

Steve Burnside after he has been injected with the T-Veronica Virus, much like what happened with Alexander Ashford when he become Nosferatu. The virus causes Steve to mutate into a huge rampaging beast with incredible strength.

There's only one tactic to use here, and that is to run. As soon as you regain control just start running. It's impossible to not get hit by Steve's huge Halberd as he chases you up the passageway, so just keep your health topped up until you reach the exit.