Mindscope Twister Tracks RollBot Add On Single Light UP Motorized LED Sphere Ages 3 - Adult Each RollBot contains 5 LED lights, one of which is a black light that leaves a glow in the dark trail on the flexible Twister Tracks! RollBot can be played on the track or off, contains bump & go technology. Compatible with Twister Tracks & Neo Tracks (not compatible with Twister Tracks 360 'loop track' only). Each RollBot requires 2 AA batteries (not included).