One survivor is safe behind the walls, perhaps he can find the cure for the zombie apocalypse, try 6 samples (levels), on every sample the bacteria reacts different.
Find the master key to open all Laboratories.

CONTROLS:
DR:
Use spacebar to enter rooms and check things
M: show the map and shortcuts to open areas.

Bacterias:
R: Restart levels
Esc: Leave levels to specific instructions and Laboratory

Green and Red
2 arrow up: double jump
Jump and then down arrow: hit the floor

Yellow:
z press and hold while walking: run
x: shield
Press up and hold, x then arrow left or right: shoot your shield

If you need any help check this video with all secrets and medals on labs http://munguiavideojuegos.blogspot.com/2016/09/bacteria-2-la-version-de-dr-noe.html

The Real Blue Boss outside the Lab is an experimental level, it could be corrupt, and sometime could not work well, it´s kind of lucky, sorry for that.