The gameplay is similar to the 2016 doodle involving drawing the same symbols, with the exception of one new purple spiral symbol and a circle symbol that gives you a shield. Along the way, She meets a white mer-cat, based on another real cat, Sugar, also owned by Juliana Chen, that helps Momo on her quest by piloting a sunken ship for her. After defeating the ghost once in the Magic Cat Academy, She must descend into the depths of the ocean to defeat the ghost once more, and transform the haunted sea animals back to normal.

Momo stars again in the Halloween 2020 doodle which takes place directly after the events of the 2016 doodle. There's an alternate illustration where she instead holds Fox's hat using her hand. While not a doodle, Momo appears in two images for the Google weather app on New Years Eve 2019, where she is seen helping Froggy set up a party, and later giving Fox a party hat using her wand. Earlier concepts showed that she was going to be the referee, but was replaced by a new spider character. Momo makes a small cameo in the Halloween 2018 as a painting on the mansion level. she is shown dressed in a Yellow Witch costume in a reference to her owner being a Yellow Witch in the Halloween 2015 Doodle. Momo plays a major role in the video for Halloween 2017 as the first Trick-or-Treater who encounters Jinx the Ghost. Momo appears on a party hat in Google's 19th Birthday.

Momo appears in the Earth Day 2017 doodle where she is shown helping the environment along with a Fox and Froggy. In the game, Momo defeats the ghosts by the player drawing symbols with her wand that appear above the ghosts' head. She is a freshman student at a wizarding school with several other animals including a Frog, a Dog, an Owl, and an anthropomorphic Pumpkin. Momo later stared in her own game in the Halloween 2016 doodle. Appearing as a normal non-anthropomorphic cat owned by the Yellow Witch (to show that she is obsessed with cats). Momo made her debut in the Halloween 2015 doodle. Momo is a Black Cat character that has appeared in several Doodles, Momo is based on a real cat (born April 15 2010) who was owned by former Doodler Juliana Chen and now lives with her relative Sidney.

Google halloween game 2017