Birdstar's Boss Drop Pack

Birdstar's Boss Drop Pack is a feature added with the very last World Expansion in PvZ2. It added 11 "Tokens" to the game, awarded by beating the expansion bosses, which, once redeemed, gives the actual Boss Drop Pack to the player.

How to unlock and redeem
Birdstar's Boss Drop Pack is obtained by redeeming all 11 World Tokens, which are obtained one by one by defeating the secondary bosses in the World Expansions. Once all of the Tokens are unlocked, you are awarded an achievement, and prompted to visit the store (You can't click out of it). Once you are in the store, you are told to click on a few things, which eventually leads to redeeming the Tokens for the Boss Drop Pack.

Contents
Birdstar's Boss Drop Pack awards the player with several plants, and many Plant Leveling related bonuses.

Currencies
The player is awarded 250,000 Coins and 10,000 Gems once they open up Birdstar's Boss Drop Pack. This is seperate from the Piñatas.

Plant Leveling
The player is also awarded with 25 World Piñatas, and is also awarded with 50 Premium Piñatas. The Premium Piñatas only give Premium Plant PAcket Electrodes, so Birdstar's Boss Drop Pack is nearly GUARANTEED to allow you to level up at least 4 or 5 Premium Plants. The coins from the Piñatas aren't included in the base currency award, so the player is awarded with a total of nearly 400k Coins. Assuming the player utilizes Plant Leveling, most of this is likely to be spent on leveling up Plants.

Plant Awards
The player is awarded with several Plants in the Boss Drop Pack. Several of these are Premium Plants, and can be purchased before obtaining the Boss Drop Pack, and some are otherwise obtainable beforehand. If the player already has a certain plant before obtaining Birdstar's Boss Drop Pack, then they will be awarded an amount of coins, gems, and packet electrodes instead. The amount of these currencies is different based on which plant it is.