The game is divided into 11 chapters, with 2 more hidden chapters. The 11 chapters are:
- Blood vein
- Intestines
- Stomach
- Kidneys
- Gallbladder
- Liver
- Lungs
- Heart
- Lymph nodes
- Pharynx
- Brain
You will be encountering shooting bacteria, fat accumulations, aggressive viruses and more. To help you achieve your goal, your drone is capable of punching, drilling and shooting with both arms. Both arms are controlled separately so you can do 2 different actions at the same time. You are also able to upgrade your drone along the way.
A fellow doctor will describe the environment for you, giving you knowledge of the various cells and bacteria you will be encountering. Not only will you be punching all sorts of viruses, but you'll also acquire a lot of knowledge in human anatomy. She will help you with your objectives as well and generally acts as an AI guide.
The game is designed with immersive exploration in mind. It aims to push the boundaries of an unexplored frontier of the human body and put it in video game format. At the same time, it also offers challenging gameplay mechanics.