Marisa to 6tsu no Kinoko: New Super Marisa Land

One day, Marisa finally obtains the six suspicious mushrooms she has longed for, but a mysterious experimental accident causes the mushrooms and their spores to be spread throughout Gensoukyou.

New Super Marisa Land is the follow-up to Super Marisa Land created by Twilight Frontier, featuring Marisa Kirisame. Per the name, it's a platforming game similar to the Super Mario Bros. series.