Well one time in RE3, the game glitched and you know how you can either get the magnum or the grenade launcher at the police station or the power sub station? My game glitched and gave me a magnum at both, I was playing on easy so I had 3 magnums. Was kind of neat.
Recently I was playing REDC from a save I have of Jill, and fighting Yawn the second time with nothing but 15 rounds of shotgun ammo, 10 rounds of pistol ammo in the pistol and like 5 bazooka rounds, which is like 2 explosives and 3 fire. I got lucky and all those and a few swipes of the knife worked.
Also when I found out as Jill you can keep the snake bite antidote as long as you let richard lay for like a hour, found that out as I went to get it, then I put it in the item box then saved, a few days alter I came back and forgot and did other puzzles, I then found it, and went and richard was dead, so I got to keep it, and it saves you the whole barry carrying you to the medical save room.
And funny was I get the derringer pistol in RE Remake till I fought the giant webspinner boss, yeah to see that big spider die from one shot of a small 22lr derringer made me giggle for like 15 minutes lol