What player is a stone-code player? Or what property a player should have to become a stone-cold player?

Likely "stone-cold," meaning "utterly." In slang, a player is male manipulator and seducer. It's hard to know without context if that's what you're talking about.

I find a meaning from LDOCE, which is If a player or sports is stone-cold, they are not able to get any points. I can't understand the meaning of "get any points" here. What does it means?

I don't think this is the most popular current slang usage, but the context will tell you. When a player on a team, plays well and scores point, we say he's "hot" or he's on a "hot streak." "Get points" means scoring baskets in basketball, runs in baseball, touchdowns in American football, goals in soccer, and so on. A player who doesn't play well is said to be "cold." "Stone cold" mean very c

Ha Ha. Thank you! I have completely understood it.