Later releases of the game added an ''Extreme Battle'' mode.----!! ''Resident Evil 2'' contains the following tropes:* AbilityRequiredToProceed:** Like in the first game, you have to find specific keys, crests/plugs, and other items in order to gain access to other areas.** Like with the Tyrant fight in the first game, the rocket launcher is a required weapon for the final Mr. X fight.