Backyard Fireflies is an expansion to Backyard Bugs and can not be played by itself. This expansion includes 13 Firefly cards and 13 Cricket cards. You can add these to the Backyard Bugs base set to enhance gameplay and increase scoring. *Note: these cards will arrive shrink wrapped with no tuck box—ordering the entire expansion set will include a single, specially designed tuck box. Instructions for this game are available on this site.