What EULA? It looks like https://github.com/NationalSecurityAgency/ghidra says it's Apache 2.0

> Is this not against the Ghidra EULA?

He's not trying to reverse engineer a serial or key file. It's being used for private use. He's not making $$$$ at SEGA's loss. It's not going to destroy SEGA's reputation.

and finally they are a hacker so the dopamine hit from being curious will be a big pay off.

In the real world, no one cares, unless they're on the receiving end of a lawsuit.

citation needed