Same as @HelixDab, System Shock would be bad, but as a regular person living in the world I could make it for $20 million. Citadel Station? Not a chance, not for all the money in the world.
Bonus Question: Fighting in a Mortal Kombat tournament? No. After a year of training I’m still going to die in the first round. No amount of money is enough.
Bonus Bonus Question: This previous questions were easy. This one’s hard. I’m sure I could find a video-game world that would be pleasant to live in, potentially much better than our world, but I’d have to trade all of my family and friends for it. I’d strongly consider it if I found a world where I could be effectively immortal and have a good life as well—making it a very narrow set of options—but ultimately I’m not sure what my answer would be.
The graphic novel that inspired it actually started life as a webcomic, and if I remember had on-screen deaths which the movie didn’t. Notably, Nimona is actually a killer, which may change the tone of some of her character moments for some readers.