Jack the Ripper was one of the central antagonists of the horror-based video-game Waxworks and was one of the numerous "evil" twins that plagued the in-game world as part of a complex curse that spanned several centuries.
As can be expected, Jack's native time-line was Victorian London and he is based loosely on the real-life killer of the same name. However, in Waxworks, Jack is believed to be a devil-worshiper and this becomes a motive for his crimes, as he kills call girls to sacrifice to Beelzebub.
When Jack is tracked down to the River Thames, he attacks with a knife and shows himself to be a capable fighter, being one of the only enemies capable of blocking attacks, but is ultimately pushed into the River Thames to his apparent demise.