In this match-three puzzler, you use colored capsules to kill corresponding viruses. Nintendo posted a video showing how it plays.
The video also reveals how the game's microtransactions work.You can use diamonds to continue gameplay, get items and restore stamina. A pack of 20 costs $2, and they're available in various increments up to 1,050 for $70.
Apparently fungi and dinosaurs can get medical licenses in the Mushroom Kingdom, because the video also shows the other doctors you can add to your roster using in-game coins or diamonds -- Dr. Peach, Dr. Luigi, Dr. Toad, Dr Yoshi and Dr. Bowser. As you'd expect, each has different abilities.
"Over 200 stages across many different worlds will be available at launch, with new doctors, stages and worlds continuing to be added to Dr. Mario World on a regular basis after launch," Nintendo wrote in its emailed release.
"Dr. Mario World can also be played together with friends and family around the world. Players can earn and receive stamina-giving hearts from friends and use the hearts to play Stage Mode. In Versus Mode, players can turn up the intensity by challenging others online to a one-on-one showdown in real-time."
Mario and friends won't just be in the doctor's office this summer -- Mario Kart Tour is due out sometime in the coming months as well. If you need a Nintendo fix on mobile now, you can try out Dragalia Lost, Super Mario Run, Fire Emblem Heroes and Animal Crossing: Pocket Camp.
First published at 4:03 a.m. PT.
Updated at 4:52 a.m. PT: Adds more detail.