I used 6 different colors for the sake of the second half of this tutorial, where you gotta combine the 6 into an inverted cube.
122 pictures were taken for this particular tutorial, and it was a bitch to resize all 122 images and put them onto a single one. Blargh. Doesn't help that I gotta do a fold, stop, take a picture, or show how a fold is being done while taking a picture with one hand. L'ugh.
A couple things to keep in mind when crafting this ball of spikey death:
1. When folding the 6 pieces to be put together (first half of the tutorial or so), you'll notice some of my images jump from one thing to another, especially during the step where you have to make a 'fan' and 'pop' the lower crease upwards. Also, when deciding which 'pointy end' to keep out and which to fold in, make sure the out ends are opposite of each other. It makes the second half of the tutorial much easier to follow. You should end up with 6 pieces of paper that look like plus signs with 2 opposite ends folded in before starting the second half of this tutorial (there's even an image of what all 6 should look like, huzzah~)
2. When 'meshing' the 6 pieces together, do 1 piece at a time. Also, the 'short' end of the plus sign fits into the long end of another one. Connecting 4 pieces together where you get a 'square' view from one side and then piecing the last 2 on the side is the easiest way to make the inverted cube. When folding the longer ends down, you need to spread the inside of the short end, and then just gently fold that flap inside. When you arrive at the part where you make the 'spikes', just fold the edges down approximately halfway from outer edge to the center of the cube.
Hopefully the tutorial isn't difficult to decipher, and if you have any questions about a particular fold or step, just comment here or send me a message.
Amazing, I would never be able to do that I am one of those people who gets so frustrated by paper folding because I have no talent. I will just stick to writing.