You can buy all 5 volumes off of the PlayStation Store for PS3 now. I believe Namco even offers them bundled. Before that, 1 and 3 were cheap, 2 a little more pricey, while 4 and 5 were actually pretty expensive. 1 and 3 had all of Namco's biggest arcade games, while 2 had Namco's underappreciated if flawed third entry in the Galaxian/Galaga series, Gaplus. And Mappy. 4 and 5 were obscure as hell. I also wondered why I never saw Junior Pac-Man or Baby Pac-Man on these collections until I found out that those games were unauthorized games made by Bally/Midway back when they were Namco's US licensee. Given that Namco tends to treat Ms. Pac-Man (also originally an unauthorized product) like a profitable red-headed stepchild, not surprising that they disowned Junior completely.


