To do it, just go to the alter to make the guy, and move your dpad to the items in the menu, there will be two. To make the spear guys you need a meat and a branch. Go to the meat and select the "tender meat" instead of the "cafeteria meat" and you'll notice the cost will rise. From what I gather, the first material goes towards attack, and the second material goes to defense. Play around with combinations for some unique patapons :D
From 0 to KICKASS in .stupid seconds.