some aren't cracked because theres like only one person actually doing it, and said person wont crack anime games because she hates anime.

it's working in the sense that i slows it down. However how denuvo works is that there are usually are generations of denuvo that get cracked, so once one gets cracked in a generation, theres a handful that will be cracked with it. if a company is using an older generation of denuvo, you may typically see day 1 cracks, which ultimately means the company paid denuvo for nothing, but the point is, denuvo wasn't meant to stop piracy first, it was meant to appease investors that require denuvo to be implemented.