Earlier this year, GungHo Online Entertainment announced a premium RPG version of its mega-hit Puzzle & Dragonsfor the 3DS.
Dubbed Puzzle & Dragons Z, the game introduced a coherent storyline and world for players to explore while keeping the focus on the match-three style of gameplay that propelled its mobile predecessor to the heights of success while stripping away the freemium elements.
If this sounds interesting to you, you're not alone. Puzzle & Dragons Z sold 543,630 copies in its first week on the market - beating out Pokemon X and Y,which sold 159,244 in its ninth week on the market - and hitting a sell through rate of 79.02 percent.
But don't pity Pikachu too much too much; Pokemon X and Y has sold 3,360,163 in Japan alone since launch.
A new challenger has appeared
Market research firm Media Create notes the main purchasers of Puzzle & Dragons Z are consumers in their late 30s and early 40s, fueling speculation that parents are buying it as a Christmas gift for children.
If true, this would mean that Nintendo now faces a rare challenge to the hegemony of its first-party titles on the 3DS.
Despite GungHo eclipsing Nintendo's market cap earlier this year, the 3DS is a viable - and popular - gaming platform in Japan with an estimated 14 million combined units sold since launch.
Puzzle & Dragons Z is due for a release in North America in 2014.