Biotek

In this game you are in a bacteria factory for whatever reason. You walk around and spray the various smiley faces (which are bacteria) with a special yeast. This will turn them white happy cloud-looking bacteria. Be careful not to spray the happy cloud bacteria as they’ll become the evil bacteria that can kill you! Once they are in this form you can pick them up and drop them into the bottle on the right side of the screen. Over time the bacteria will change to angry bacteria which will duplicate themselves or become evil pirate looking bacteria that will kill you if you touch them. They also can convert other bacteria into deadly bacteria if they run into them. As the game progresses more and more bacteria are added into the levels. It’s a pretty simple game though and not too difficult until the later levels. Side note: the directions on the title screen use a word that is now very taboo in Japanese to describe the “crazy bacteria”, which is “kichigai”. Not sure if it was as offensive at the time of release but odd to see a cutesy game like this have something like that.