This game is janky kong! It’s very different from rules you may know if you played yugioh and follows more of rules from the Bandai days. You can summon monsters without any tributes. If you get the strongest monster you can fly through this game but good luck with that as this game is grindy. In story mode you’ll beat people in card games and unlock one card. Not packs one card. This is how this game pads your playing experience. In the mode known as free duel you can play against opponents you’ve beaten in story mode and this is where you will spend most of your time. Unlock high level cards is difficult. It’s all luck based. Even if you beat a player at a high rank and get the highest grade it does not guarantee you’ll get a good card. Another way to do good at this game is to fuse your monsters. You can fuse any of your monster cards and depending on the combination you can create a powerful card. Overall this game can be beaten in 30 minutes with the right cards or months depending on your willingness to grind.