Angry Birds 2/Unused Content

Old Name
Angry Birds 2 was first called Angry Birds Under Pigstruction,the name obiviously means that the game was on a beta.

Mighty Eagle
Mighty Eagle wans't unused,but on the beta of the game,he appeared on the level menu giving hints to the player instead of Red having this role.

Unused Graphics
On the beta,the level score was different,it was made with paper and had an circular score meter with a Classic Red on a blue card instead of being a blank red card. The Beta Slingshot was made with a 3D model instead of a sprite.

Different Level Completed Screen
On the beta Level Completed Screen,the birds who appeared where just the used ones.