When you complete the game on Normal or Hard mode in a certin time you get a ranking and special rewards.

S: 3:30 or less Closet Key, Sud-Machine gun, Rocket Launcher, Leech Hunter game.
A: 5:00~3:31 Closet Key, Sub-Machine Gun, Leech Hunter game.
B: 7:00~5:01 Closet Key, Leech Hunter
C: 9:00~7:01 Closet Key, Leech Hunter
D: 9:01+ Closet Key, Leech Hunter

Note: Sub-Machine Gun has only one clip in the gun, so after its used up it's useless complete E ranking in the Leech Hunter Game.

Note 2:Rocket Launcher as unlimited ammo

Note 3: Rebecca has two new outfits are the cow girl and leather out fit. Billy has a Armani suit and Sunglasses, there also aviable in the Leech Hunter game.