[IXRollOutIX]

So let's see... It looks like all 15 aside from Houdini are so far accounted for:

01: Musashi - GanGun Saber
02: Edison - Ghost Driver
03: Robin - Sold Individually
04: Newton - Suprise Future DX Set
05: Billy the Kid - Sold Individually
06: Beethoven - 2 pack with Nobunaga
07: Benkei - Sold Individually
08: Goemon - Sunglasslasher
09: Ryoma - Sunglasslasher
10: Himiko - 3 pack with Grimm and Sanzo
11: Tutankhamen - Sold Individually
12: Nobunaga - 2 pack with Beethoven
13: Houdini - ?
14: Grimm - 3 pack with Himiko and Sanzo
15: Sanzo - 3 pack with Himiko and Grimm

It just now occurred to me that Goemon and Robin are strangely similar. They're both "steal from the rich, give to the poor" thieves, right? Although I suppose there's a big difference; one being a ninja and the other a woodland archer.