I think that's a bit of an exageration. (That being said, I did somehow get to 4 copies of Ojama King before my third of Ojama Knight on my second account, lol. Also has 3 copies of every one of his holos, except for Ojama Blue, which I have 1 copy of.)
Check out the pineapple blast card with this one's effect. (Although you'd need to be able to normal summon an Ojama before polymerization for this to work.)
From no cards on the field except pineapple set, normal summon an ojama, activate pineapple, then fuse.