X-Potato is a weapon in HoloCure: Save the Fans!. It is unlocked by surviving 10 minutes in a single run with Korone. The item will be unlocked regardless if the player wins or loses the run.
X-Potato fires potatoes in random directions that bounce off the edges of the screen. After bouncing for enough time, the potatoes will explode in an X-shaped blast.
X-Potato is a mispronunciation of "Exposito", a boss from the game Blasphemous. This name was originally made by Inugami Korone when she was looking up various bosses after beating the game on-stream.[1].