This is the list of unused content from the game Angry Birds POP!.
Pig Gate was first introduced in the worldwide release of the game and was no longer needed after the Red vs The Undead Update. Similar to the Candy Crush Saga.
The critters were present until the Hatchlings update, then they were permanently removed from the game. They do appear on the map which is seen near the Waterfall area and formerly Willow had to free them. They were then converted into Hatchlings.
Stella star sounds
The Stella star sound play along with the star animation on the scores screen. However, the sound was no longer available on the mobile version.
Willow's Paint Bucket
In very early versions of the game, the bucket was used as the score for bubbles to drop into. However, it was removed and replaced with Piggy in the middle.
Dahlia's Laboratory Equipment
In early versions of the game, the laboratory equipment was used as the score for bubbles to drop into. However, it was removed and replaced with the current one.
Poppy Level Icon
Poppy was removed in v2.34 and replaced by Bomb.
Invite Friends Icon
It appeared in version v1.18.0. However, it was replaced with the current icon.
Game type transparencies
Unused Daily Guest Star Birds
In recent versions, a sprite of Mighty Eagle was added, meaning that he can appear, but he doesn't do in the game yet.
Mighty Eagle's Level
In recent versions, a sprite of Mighty Eagle's level was added, meaning that he can appear, but he doesn't do in the game yet.