Pascal is a sea otter that you can encounter in Animal Crossing: New Horizons' latest summer update. You can only encounter it if you get scallops, which you can find by diving into the ocean and finding scallops. Scallops are a random item that you can find while swimming in the ocean, so you may need to spend some time searching the ocean. Be sure to dive whenever you see bubbles rising from the water.
Once you find a scallop, Pascal immediately spawns. He appears nearby and asks if you want to part with him. If you are willing to do so, he will offer you a mermaid item in return. The exchange is quite fast, but it has a lot of dialogue. Once he finishes talking to you and walks away, you will have a new mermaid in your inventory and the scallop will be gone.
He won't do that for you every day. Pascal will only appear at least once a day, so he won't always talk to you every time. Pascal may not show up when you first find scallops, but if he hasn't visited you that day, you can keep looking for them. It only does this once a day, giving you a chance to earn new mermaid coins once a day. You can choose to travel back in time to get more mermaid themed items if you want to get some sooner.
