Try designing your own game or puzzle on bacteria and viruses. Let your teacher see it and let your classmates attempt your puzzle.Here are some places that may help.
http://eleaston.com/quizzes.html
http://puzzlemaker.school.discovery.com/
http://www.clearlight.com/~vivi/xw/index.html
http://www.webwinder.com/wwhtmbin/jbibquiz.html
Students you could even doa Hyperstudio stack. You can look at my students' Hyperstudio projects on bacteria and viruses. They are a result of health and science units on bacteria and viruses.
http://www.siec.k12.in.us/pces/elem.htm
Teachers, go to this site and get a lesson plan to help to set this process up in your classroom.