To progress further with the story you need to increase Aster's Heart meter. Every character has eight hearts you need to fill up to unlock story chapters for your partner.
For the minigames, like the snake one, you need to meet certain conditions to unlock new packs. The snake one, you are working with your partner to get 400 people, not against. I always found them really hard to complete though haha
If u have your real cards u can put the password in the rental machine the password is at the bottom left of your cards hope this helps u out Voltsy. 😀
@@HeroVoltsyTCG whenever I buy cards and check what I got, there's this label in the bottom that says "rare, super, ultra" I just took a screen record of it and uploaded it in my channel check it out (lol I feel like a RU-vidr saying that)