How do you earn cash quickly on mercenaries on resident evil 3

well you can't really earn it quickly but the quickest ways to make cash are to visit all locations and backstreets. to now you gotta be quick you gotta conserve your ammo and be alert(incase of a nemesis attack)

earn time and point by killing zombies however say there was a group of 5 zombies kill 3 then move on this is because you need ammo so if you need time badly you got reserve ammo to rack up some time also you never know if nemesis is gonna jump out and theres no time to have a 5min battle with a knife.

when you do encounter nemesis you don't have to defeat him however if you do you get a good amount of points/time however you might run out of ammo resulting in massive time loss and points loss so if u have tons of ammo go and kill him. if you choose to avoid him by going through a door you'll find he will track to down and pop out randomly and quite frequently too so do try to take him down at least once so he stops hunting you .

it is important to rescue civillians to get point/time bonuses they almost always drop packages which are almost always ammo but can be time bonus sometimes anyway this is cruicial to get a good score at the end.

and finally try not to back track because say there was 3 zombies in one room then you leave for like 3mins then come back chances are there not there and if this happens then you could of lost valuable time so when your in an area farm it as good as you can that means take and kill as much as you can and go DON'T FORGET TO CONSERVE AMMO so that's it good luck hope this helped