Mother Maiamai resides in a cave to the north of Lake Hylia; the cave is surrounded by rock formations that bear a similarity to Mother Maiamai herself, and must initially be opened with a bomb. By returning her lost children, Mother Maiamai can upgrade one of Link's items that he owns into the "Nice" version of that item by swallowing it, apparently tasting it and then spitting it out. However, she cannot upgrade items that Link rented from Ravio. Nice items feature a new design and enhanced features. However, an item may only be upgraded once. Once Link collects all 100 children, Mother Maiamai will swallow him whole and then spit him out, granting Link the Great Spin Attack.
After granting all upgrades, she will leave this dimension leaving only one child who elected to stay behind.
- "We thank you the help, my tykes and I! I've opened up a nice battle reward for you, by and by!"
- — Mother Maiamai's message in Hyrule Warriors Legends
As part of the A Link Between Worlds DLC, an 8-Bit Mother Maiamai can be found on the Lorule Adventure Map. By giving a Baby Maiamai Item Card to Mother Maiamai, one can unlock battle rewards on the Lorule Map.