This game lets players try to collect cute mermaids! There are currently 20 mermaids ( with more on the way). They have either a 1-star, 2-star, 3-star, 4-star, or the coveted 5-star, which is the rarest. Players use Mercoins to get new mermaids. They can get more either by buying them in the shop with real money (not actually but figuratively Character AI doesn't have currency) or by adding new mermaids to their collection, each new mermaid adds 100 Mercoins to the user's account.