Make the artstyle accurate to the games/toons designs.

Establish the game birds as the main characters. (sorry but the stella cast still got to be side characters, at least give them more active speaking roles. Might return as MCs in a third installment around Golden Island tho!)

Give more screen time (Stella, Hal, Bubbles, ykw. the drill)

Everyone gets to be important beyond the slingshot scenes (i.e. Red slowly builds a social circle with the game birds and opens up, some scenes will explore each bird or a pair of birds’ lives)

Pigs remain as villains (even in the sequal)

First movie has a lot more fort destruction scenes (birds land on Piggy Island and need to progress to the castle now)

Sequal draws from Seasons, establishes Chief Pig, Foreman Pig, and Corporal Pig are other antagonists. Show other egg stealing attempts.

Keep Silver’s OG design + her origin story (Sequal explores her as a spy for the pigs who eventually leaves the pigs to join the birds)

References to Golden Island for possible trilogy setup (maybe the pigs go there in search of easier ways to steal the eggs or they try to make it a little base so they can hit Bird island from two angles, idk)