Announcing the SRR Ninja Career. Take part in over 350 tracks, organised by Ninja level. Challenge your friends, improve your skills and get to that next Ninja Level! http://bit.ly/ninjagrible
great idea. thanks to all the builders and the organizers who put this together. i've just played through the first 4 tracks and had a lot of fun. don't know how far i'll be able to get, but it will be fun to see.