What is i'm game?

"Hey, wanna go see a movie tonight and meet some fine ass bitches?"

"I'm game"

i'm game - video

Bobby: Hey want to go to HEB?
You: Yeah, sure, I'm game.

Jack: Would you like to go shoot some hoops?
Jane: I'm game.

I'm game- I'm cool with that, that's fine, let's do it

-Hey you wanna go shoot some pool?
-Yea, I'm game

"Im game"...its another way of saying..."Im Down"..."Im Ready"..

Tyrell: Yo Jermaine...u wanna go rob dis 7/11 wit us tonight...

Jermaine:...well i am broke...iight..im game.

I would be interested in following up on your suggestion.
Let us progress.

"Shall we go see a movie?"
"I'm Game"

"Are you interested in going to the concert with me tomorrow?"
"Yeah, I'm game."

I'm with you, meaning that you agree to do something with someone.

Guy #1 : Yo, we're gonna go smack that punk-ass motherfucker. Ya coming with us?
Guy #2 : Aight, I'm game.
Guy #1 : Good, let's go.

An phrase expressing one's willingness to participate in a given activity.

Friend: Dude, do you want to go to Denny's?
You: Yeah man, I'm game.

Used to indicate that the speaker is interested in doing whatever has just been suggested. Similar to "I'm up for that."

Bart: Let's go see a flick.
Lisa: Sure, I'm game.