Rise of the Kasai

There are 32 Tuku collectibles that can be gathered across the 11 levels in this game. You can replay levels as many times as you want to collect these items and you are not required to collect them all in one go. As soon as you "save" your game, at any time, whatever Tukus you have collected will be saved. As such you are not required to complete a level in order for your Tuku collection to be saved. With that said, it does depend on finding a save spot. Saves always occur at the end of an Area and most areas additionally have a save point where you can trigger a save. It is in your control whether you want to save or not.

There is a text and picture Tuku Guide located here: LINK