I feel like they were going for edutainment vibes with this. Can hardly tell it's for a Dreamcast!
https://www.ebay.com/itm/406676629948
There was a period there just before the console was discontinued when they tried this style for some Dreamcast packaging in Japan; full-bleed photographs where only the little orange corner logo gave away the branding.
It was wild for a little while after I moved here, picking through secondhand game stores and thinking I'd found some (to me) new treasure, only for it to turn out to be a common Dreamcast accessory in this style of packaging. One of the most unusual is the main console box with a photo of Sega's President at the time, Hidekazu Yukawa. He was the "Public Face of Dreamcast" in Japan for a short time. But although it's unusual, it's not uncommon, and it contained a completely standard Dreamcast console.