Prototype
Prototype may not be the series everyone thinks of immediately following the name Activision, but it undoubtedly offered something unique.
The first entry in the series is set in Manhattan, following Alex Mercer, a shapeshifter with no recollection of his past as the city is being taken over by Blacklight, a virus which creates monsters – monsters which the player must defeat in some entertaining combat fuelled by bloodshed.
The Prototype series is remembered for its fun and fast-paced gameplay, as both entries are games which empower the player and feed them an exciting gameplay experience within its combat.
Prototype is also remembered for its fast, freeing movement as you soar across the city with a sense of urgency.
Prototype 2 is much more atmospheric and moves away from Manhattan, also shifting for a focus on evolution as the protagonist develops abilities and becomes more superhuman along the way, gaining new dashes and movement abilities.