8 of the 9 Combo cards and scratch cards available in Case Zero. (Paddlesaw is missing.)
Combo cards display weapons that can be combined to make a new combo weapon. In order for Chuck to use all attacks per weapon and gain the full prestige points amount per attack, he must gain the combo card for that particular weapon.[1]
Chuck can only gain 5 combo cards in Case Zero - Spiked Bat, I.E.D., Boomstick , Molotov and Drill Bucket. All the rest of the weapon cards will remain scratch cards. In Case Zero, Chuck will gain a new combo card per level gained.
Chuck will gain a scratch card for every weapon combination that he makes without having a combo card prior to combining the two weapons. A scratch card will remain as a scratch card until Chuck gains the combo card for that particular weapon.
When only having a scratch card, some combo weapon attacks are not available and Chuck will not gain the full prestige point amount for each attack.[1]
Scratch Cards look similar to Combo Cards, but instead of being in full color, they are brownish red, with no bonus prestige points on the card.
