Resident Evil 4 Limited Edition Pak

Use these controls during the title screen.
C-stick moves the backround left and right.
R zooms in backround.
L zooms out backround.

Once you have fully upgrades every stat for a specific weapon, you can purchase an expensive "Exclusive" upgrade for that weapon.

Note: Killer7 has no "Exclusive" Upgrade.

Beat the game to unlock the Matilda handgun and the Infinite Rocket Launcher. The items will be unlocked for purchase at any merchant if you load up a "Round 2" game save. The weapons come with a hefty price, too.

In the course of the mercenaries game, you can unlock extra characters by completing the maps with a high score, in addition to secret characters, you can also unlock weapons. The total cost of the Handcannon's upgrades is 790,000 pesetas.

When the guy who runs around and sells you upgrades for weapons, he has a secret "quest" for you.