The base Nintendo Switch has only 32 GB of internal storage. After the operating system takes its share, you have roughly 25 GB free. This means that the Mortal Kombat 1 NSP alone will not fit on a stock Switch’s internal memory. You are required to have a microSD card —ideally a UHS-I card with at least 128 GB of space.

Initial launch was "nearly unplayable" [4], but performance is noticeably better as of the 2025 updates [10].