Total needed to master: ???
When doing particular actions in Bakery Story, there is a chance that a collectible will drop. You need one of each in a collection before you can redeem the prize. Redeem by going to Main menu > Collectibles and finding which collection you have completed. Once redeemed, if it is a decoration, go into Design menu to find your prize. There is one item in each collection that is extremely hard to get, which seems to vary for each person.
List of action needed for the collection and prizes :
The same prize can be redeemed more than once as long as you have at
least one of each in collection, which will increase your mastery of
that collection. Redeem a collection enough times and you'll go up a
mastery level (up to level four) with mastery rewards (coins/Gems and
experience) at each level. Each level requires more redemption times to
get to the next level.
Bakery Story >