Did you mean “Resident Evil / Biohazard HD”? Make sure you are using the correct trainer.
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For Resident Evil / Biohazard HD Remaster, you need this trainer: Resident Evil / biohazard HD REMASTER Cheats and Trainer for Steam by STiNGERR.
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For Resident Evil 0 / Biohazard 0 Remaster, you need this trainer: Resident Evil 0 / biohazard 0 HD REMASTER Cheats and Trainer for Steam by MrAntiFun.
Notice the slight differences in the name of the game.