Resident Evil 3

These apply to the 2020 remake of Resident Evil 3.

Points Shop:
Clear the game once on any difficulty to unlock the shop under Bonuses.
You pay with points, which you earn by completing challenges in Records (and by beating the game on the harder difficulties).
Points count across all playthroughs and saves. Each record only gives points once.
Items you buy can be used on any difficulty, and they don't affect your rank or trophies/achievements.

Infinite ammo weapons:
Infinite MUP Handgun          8,000 points
Infinite CQBR Assault Rifle   28,400 points
Infinite Rocket Launcher      62,400 points
The Infinite Rocket Launcher kills everything except Nemesis in one hit.

Other shop items:
Recovery Coin                 Health regeneration
Iron Defense Coin             Increased defense
Assault Coin                  Increased attack
Hip Pouch                     More inventory space
Jill's S.T.A.R.S. outfit      2,000 points

Nightmare and Inferno:
Complete the game on Hardcore (the Veteran record) to unlock Nightmare mode.
Clear Nightmare to unlock Inferno mode.

Easy points:
The storage room in NEST 2 (full of enemies after you use the red flash drive) is a good place to finish the Shotgun, MAG and Grenade Launcher kill records.
Defending the hospital lobby as Carlos (Makeshift Sickroom) is good for the Handgun, Assault Rifle and total kill records.