World 15 (Dr. Mario World)

World 15 is a volcanic-themed world in Dr. Mario World. The first area is available as of 2 AM PT on Jan. 9, 2020, while the second area, challenge stages and special stage are available as of 12 AM PT on Jan. 23, 2020.

When an area is cleared, Dry Bones, Bone Goombas, and Lava Bubbles appear, along with Whomp in the second area. The viruses featured in the regular stages are red, yellow and light-blue.

Stage names in bold red text are labelled as hard stages in the game.

Profiles

 * Dr. Mario World Twitter:
 * Yellow: "Apparently new stages are gonna be added to blue on Jan. 9, 2 AM PT. Look at this place boil and bubble!"
 * Yellow: "New stages were added! The castle entrance looks like the face of a doctor I've seen before... And the doctor you can get as a reward for clearing the World 11 Special Stage is Dr. Fire Peach. Good luck!"