Here's some Definitions, mix and match them as you like.Myself, I consider myself a Passionate Casual. Very rarely do I cross over to Hardcore.
Passionate Gamer: You're Passionate towards Video Games and The Medium. You play games for fun or challenge, appreciate varied gameplay and story archetypes, and try not to be overly bias against other forms of Video Games.
Hardcore Gamer: You play games for the Challenge! You Practice and Train hard to compete against your fellow Hardcore Gamers. Story doesn't matter a whole lot to you so long as the game is challenging. Easy games or games that are difficult due to flaws are rejected outright, though this is a double edged sword as you might miss out on some great competitive games due to their Easy Appearance.
Casual Gamer: You play games solely for fun, once people start getting competitive it ruins the experience for you. You may pick up a game, single or multiplayer, for about and hour or so before putting it down and going back to what you were doing before. Games to you are like movies or books, they're just another form of Media you use to escape from real life.
New Gamer: You've only played the gaming equivalent to youtube videos and short web series. It's been Browser/Flash Games and Puzzle Games for you and they still aren't part of your world view of culture. They aren't to the level of books or movies yet. If you're a sane person, this is fine though a little dated. If you're not sane you may form bias opinions based on what you've seen or heard. You may even start campaigning against them as if they're planting the seeds of evil in to those who play... you know, just like Movies and Music did so well in the past.
HARDCORE!!! Gamer: You only play competitively, but once people start getting competitive it ruins the experience for you. English is not a first language for you, no language is, the best you could hope for is some garbled sub-version of English or at best Leet-Speak. Doesn't really matter to you though, so long as you make sure you're the only one having a good time. In fact, you're the only one who should be having a good time, which is why you find it so hard to believe that some companies aren't focusing on games that comply to your specific pallet of gaming. The easiest conclusion you can draw is that those companies suck and those who decidedly play those games and buy those consoles are Noob Losers who wouldn't know real gaming if it was fired at them out of the barrel of the Class M15 Semi-Automatic Gatling Gun strapped to your favorite characters broad, oversized shoulders. Heaven forbid anyone disagree with you on this subject or try to prove your bias assumptions wrong. They must have not read your run-on sentence on how much they and their console suck hard enough, you should re-post it. You're the self-proclaimed best at what ever game you're playing, the only way people can beat you is if they use hacks which you are quick to call out on, but not hesitant to use yourself if the situation arises. Besides, you're the best right? This qualifies you to cheat, seeing how you'd win anyway, right? It's ether that or they're simply not playing the game right, or we should say not in a way that mimics you exactly or allows you the luxury of winning. That's a right reserved for you and you alone, it's why you play games in the first place. If it's not Gray, Black, and Brown; it's probably not worth your time.