Nemesis Rewards
Each time Nemesis is defeated, he will drop a special item.

1st time - EAGLE Parts A
2nd time - EAGLE Parts B
3rd time - First Aid Spray Box
4th time - BENELLI M3S Parts A
5th time - BENELLI M3S Parts B
6th time - First Aid Spray Box
7th time - Unlimited ammunition Pack

Additional Costumes
After the Boutique Key has been acquired, five new outfits may be earned by finishing the game at Hard difficulty. (The costumes are: Police Uniform, Dino Crisis suit, Disco Outfit, Biker Uniform and STARS outfit) Your final grade determines how many new outfits you get from the boutique.

5 costumes - A grade
4 costumes - B grade
3 costumes - C grade
2 costumes - D grade
1 costumes - EUnlock 

Mercenary Mode
To unlock Mercenary Mode, beat the game once and save the game. Once you begin from that saved game, the mini-game will be available from the main menu.