Dysbiosis, by Force Of Habit and Clockwork Cuckoo, winner of the Gamify Your PhD game jam, is a slick, surprisingly educational tunnel-shooter set inside colons of varying degrees of health. As you can see from the video above, it's quite polished and it plays similarly to Tempest, with an added element of defense.

The term "dysbiosis" (kind of the opposite of "symbiosis") refers to an imbalance of intestinal microflora. Your job on this fantastic voyage is to destroy the "bad" bacteria and save the "good" bacteria, thus restoring a healthy balance.

You move back and forth along a track on the intestinal wall, cell by cell, shooting antimicrobial peptides at E.coli, Salmonella, and Campylobacter (the red, orange, and yellow things) as they hurtle toward you in waves. They advance on you quickly down lanes, and if they get past you they'll destroy the cells behind you, blocking your access.

DON'T shoot good bacteria or vitamins (the green and blue things, respectively). Let these goodies get absorbed by the intestinal lining behind you and form a shield to help protect the cells. If you get overwhelmed, fire off some screen-clearing antibiotics.

You can use any of three control methods: keyboard, mouse, or Xbox controller. Move from lane to lane with the left and right arrow keys, mouse, or left analogue stick. Fire peptide missiles with the spacebar, a left click, or the A button. Shoot a dose of antibiotics with the up arrow, a right click, or the B button.

Dysbiosis looks and sounds great, and is a lot of fun, especially for an ostensibly educational game! Dysbiosis is playable in your browser on Kongregate and Game Jolt.