Red was a friend of King Pig at Red's Resturant at that time.
Red used to be a friend of King Pig for (possibly) a long time. But then after the Disgusting Sandwich Glitch Incident, King Pig stopped being friends and had abandoned him. Red had turned birds of Piggy Island into a threat to Hamtown.
- This Red might be the red from Angry Birds.
- This makes it easy to imagine what Red will look like without actually seeing him in game.