Comics legend Stan Lee is hosting a caption-writing contest on Facebook.

Write a snappy caption for this artistic rendition of Stan Lee as a ”Mission Commander” (pictured) and post it as a comment at this link. Lee will personally pick the winning submission. No official reward has been revealed, but a “special prize or two” could possibly be given out.

This contest promotes a new project developed by mobile entertainment publisher Moonshark and Stan Lee called “Verticus.” This superhero action-adventure game is available on iOS-supported devices (i.e. iPads). Follow this link to learn about the full details of this contest.