This is different on each game console. However, all controllers allow you to "scroll through" your weapons until your select the correct one.;
,, Press the inventory button quickly and again scroll through your weapons. You must do this before the "laser" beam appears on screen.
 Don't be shy; feel free to try different combination.
 The Ditman glitch allows you to take video game play to the next level on Resident Evil 4, as you now will be able to fire both guns at once.
Use your controller to select the striker gun.
Aim your striker at your desired target or enemy.

,
Press the inventory button.
Select an additional gun to your liking.
Fire away at the enemy.
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