Not to be alarmist on this, but that very same exact auction/picture ended on Yahoo JP a couple of days ago. And if I remember correctly sold for more. There were also more pictures there for that auction showing the games. If I hadn't cleared my auction list I could put the auction up here (no way I can find to search completed auctions on Yahoo JP).
What's more is that seller's other "bulk" listing right now was also exactly used in a Yahoo JP listing just this past week. In that auction there's a Bonk 3 and Star Parodia and an Arcade Card Pro and I know I bid on it around that $95 range they're currently selling it for. In other words, I don't remember what it ended at, but I know they're not making any money on either auction.
I hope this story ends well for you, but please be cautious with this one.