Fear

The other participants who received the disk before Mako didn't really ask about what it was since they assumed it would be explained to them like everything else that came before it. However, after hearing Mako shriek about "jumping", many participants started having concerns as to what the military was about to make them do.

Just then the speakers on the plane turned on and the voice of an unfamiliar man who was most likely in charge of the plane sounded throughout the cabin.

"Cadets please remain calm. Once the officers are finished handing out the disks, an instructional video will be played on the screens in front of you which will resolve any of your queries." The man said through the speaker.

The officers continued handing out the disks to the rest of the cadets and they all patiently waited for the video to play which was going to explain to them the purpose of these disks.

Well... Almost everyone.