I imagine that Japanese see Judeo-Christian symbols the way we see Greco-Roman or Norse mythology, and to a degree, Japanese mythology. So many Japanese games have Judeo-Christian symbolism in them. Final Fantasy, Xenogears, Bayonetta, some Tales games (Symphonia had a lot of not-too-subtle and not-too-flattering references to Catholicism in it), some Pokemon, and even Zelda. Originally, according to Miyamoto, Christianity was the main religion of Hyrule, with Link having a Latin cross on his shield in the NES games. It wasn't until A Link to the Past that Zelda started really developing its own mythology and pantheon. Since Japan isn't Christian (and in fact, their rejection of Christianity is said to have kept Japan from falling under European colonial rule the way China, Africa, and the Americas did), it doesn't mean much to them. They do celebrate Christmas as a secular holiday with their own spin on it (for single adults, Christmas involves dinner at KFC followed by a night at a love hotel), and they are aware to a degree of how religious the United States is. They almost didn't release Xenogears or Final Fantasy Tactics in the US due to concerns about backlash from religious groups.