While waiting on your energy to recharge, you can also do things in studio mode and life mode. There are minigames which earn you in game currency, and they don't use stamina. If you run out of stamina, there’s a variety of things you can do. Your avatar requires energy to interact with NPCs and you use in-game currency to buy one of 100 gift items. Gacha Life uses in-game currency and energy.
This program is one of the best for anybody interested in learning how animation works or wants to get into animation. Gacha Life: the scratch equivalent for animation
