Let's Make Robots!

LED cube the start of my robot

i would like to make a LED cube like the one in the video a 3x3x3 cube

how ever i need to know abit about pic microcontorollers and i dont know what i should use

i have looked online for help but i dont know how they work

also i know this doesnt have much to do with robots but i plan to make one and have it interact with the cube

soo im starting with the cube any help would be great thank you