"Cyberpunk isn't about saving humanity, it's about saving yourself"
[...]
Living in a futuristic city where you try to make it to the next day. Living in a crappy hotel room, drinking a crappy coffee in the morning and then going out onto the streets hoping you make it back alive. Anything can kill you, the man walking towards you could be a random npc or an augmented assassin sent to kill you aaaaaah i really want this.......... colourful lights, some sort of futuristic drug (like eye drops in looper) sold around the city, night clubs, lots of crime and underground agencies etc. all with a mind f*** story >_> i want....
That's exactly what Cyberpunk is about, we should even copy/paste what you said and put it behind the game's box

.
Imagine Deus Ex : HR, with at least 20 Sarif Corporation, real consequences (if your piss a gang, they'll go after you), real drugs (not just beer), a lot of implant, a lot of gun, a rock'n roll vibe, and no:
"I'm the hero, so i have to look like a dark-minded-badass-who-lost-his-GF-cliché-video-game-hero-because-i'm-so-sad-that-my-life-sucks,but-who-care-it's-the-same-in-every-video-game-i-played-recently"
That's the main difference between US and Japanese Cyberpunk.
Japanese CP is often, realy cliché "character" wise, with dark-souls, "above everyone" philosophy, etc...
Whereas US cyberpunk, each character has it's own agenda to follow, and don't really care about other people, excepted if they're on their way, it has an Anarchist feels to be honest, whereas JP is more "nice guy".
It makes me lol when i read (
not here, don't worry lol ) people thinking it's going to be a Ghost in the shell or an Akira game because all they know of the Cyberpunk are anime (not that they're bad, but it's a totaly another universe), probably CP77 will be a lil inpired by japanese Cyberpunk, design-wise, but story-wise, it's going to be pure-breed-us-cyberpunk.
for example, Ghost in the Shell, even if i really love the OAV and i watch them often, the "I'm a cyborg, i'm a cop, and i spend my time doing boring speech about philosophy and things" stuff makes me smiles... Seriously... GUYS?! Who cares?
I'm sure my player in CP2020 would love this if, in the middle of a fight, i'd open a Socrate's book, and start reading them a few lines... As they were trying to sneak in a Petrochem labs to steel chemical products, so their Medtechie'll be able to produce drugs, because they planned to stole the Voodoo boys territory, and selling better drugs than their is a good way to start
(this, and beating every Voodoo' they'll meet, so they'll know what they're up to).
Good place for philosophy.
If Akira was an US Cyberpunk, Tsetsuo would've kicked Kaneda's ass, fight against the army, walked to the white house, kicked the US president out, and said "Ok bitches! i'm the boss now!"
With this playing in background:
No useless blabla, it stay rooted in a "everyday life", adding some rock'n roll and cyber stuff to make it cooler.
If someone if powerful enought to screw other people, and take the crown, he'll do it, no matter what.
In Cyberpunk (game), there is you... just you, and I hope you're badass enought to end the day.
Good luck Choombata.
IMO, a good idea of the "background" for cyberpunk, in media, would be something close to the intro of Robocop 2, an eternal chain of egocentric people, fighting for their own agenda.