Every student who participates in the Power4Bones program receives their very own Earth Agent ID badge, which serves a multitude of purposes.

Students store their unique secret code on the front of their badge. Students use this code to play the web challenges and to receive messages from Agent Bones in their mailbox.

In some of the comics, an important, coded message appears for the "Earth Agents". They must solve a puzzle or decode an alien message like this one.

Once they have decoded the message from Agent Bones, Earth Agents can write it in their ID badge. Eventually, all 4 messages will be decoded, and the mystery will be solved! Students should use the important information stored on ID badges to create great bone-health public service announcements at the end of the program.