If the hidden field doesn’t appear, you may need to log out of your Rovio ID and restart the game. Remember, Rovio ID servers are deprecated, so you may need to play in "Offline Mode."
In the game’s peak years, Rovio occasionally released promo codes for items like Lucky Coins or Snoutlings. However, angry birds epic codes
: Any old promotional codes found online have long since expired. If the hidden field doesn’t appear, you may