In Resident Evil Zero HD, there are rewards that you get to unlock upon finishing the game. The rewards that you get depends on how much time you spend playing the game and actually finishing it to the end.
At the end of the credits, your performance will be ranked. Here are the rewards that you can get in each rank and how to attain them:
Rank S
Time: 3:30 or less
Bonus Unlocked: Closet Key, Sub-Machine Gun, Rocket Launcher, Leech HunterRank A
Time: 5:00~3:31
Bonus Unlocked: Closet Key, Sub-machine Gun, Leech HunterRank B
Time: 7:00~5:01
Bonus Unlocked: Closet Key, Leech HunterRank C
Time: 9:00~7:01
Bonus Unlocked: Closet Key, Leech HunterRank D
Time: 9:01+
Bonus Unlocked: Closet Key, Leech Hunter
Check out our review of Resident Evil Zero HD to find out if it’s worth your time.