The endurance in "Katie Island Adventure" is an important resource in the game, so it is very necessary to increase endurance. The main method to increase endurance is to collect endurance apple slices. You need five endurance apple slices. Come make an endurance apple, which will permanently increase your endurance.
How to increase the endurance of Katie Island Adventure
The main way to increase endurance is to collect endurance apple slices. You need five endurance apple slices to make one endurance apple, which will permanently increase your endurance.
When you collect the first five apple slices, the "Wonderful Fruit" mission will be unlocked. Head to the resort gate to find the Chocolate Cat, which is next to his tent, with an exclamation mark indicating the mission. Talk to him and you will get a blueprint for making the Endurance Apple. Once you get the Blueprint, you can use the Chocolate Cat's crafting station to make the Endurance Apple and increase your endurance.
You don't need to eat these apples or do anything special. Once the crafting is complete, your endurance bar will automatically increase and the endurance apple will not appear in your inventory.