The Game -- Puts Stitches On Blast ... In Front of Huge Crowd

The Game went in on Stitches once again ... this time reenacting his knockout in front of thousands of people.

The Game was in San Bernardino Saturday night for his "Blazers Cup" show when he put on his best acting face and demonstrated how last week's k.o. went down.

Check out the video...The Game crew even joins in on the action, demonstrating how Stitches "went to sleep."

Your move Stitches.