Have you ever noticed that the crappiest sequels don't have numerals? Instead they have ambiguous sub-names.
Resident Evil: Retribution
Ghost Rider: Spirit of Vengeance
Underworld: Awakening
One of the only exceptions to the rule is Die Hard: With a Vengeance. Also, I have to point out that Under Siege 2: Dark Territory and Speed 2: Cruise Control both have numeric values, they also fall under the crappy sequel label.


