I would build a robot as a Drone that shoots Nerf harmless arrows! You could then have fun battles between friends.
By myriaddev
Other robots from Synthiam community

DJ's Voice Recognition Robot
Re-using the Cookie Monster shell to show off the EZ-Bs Voice Recognition ability. This robot will respond to voice...

Foamtastic's Working On A Baby Dragon.
ALL VIDEOS HAVE BEEN MOVED TO MY NEW YOUTUBE CHANNEL, https://www.youtube.com/channel/UC0rzTuN8JW_pY0RDhS7Q0BA when I...

Pabi!O's Pabi!O's Wall-E
So I see a lot of wall-es around That made me thinking, its time to show my wall-e I started with the small wall-e ( the...