SEGA has confirmed that Sonic Frontiers has sold over 2.5 million units worldwide since its release on November 8, making it the best selling Sonic game in more then a decade, despite only being out a month. In fact, Frontiers has already managed to sell 43% of what Sonic games as a whole managed to sell during the entirety of SEGA’s previous fiscal year. What’s more impressive, Frontiers is also among the fastest selling mainline Sonic games of all time.

While old sales data can be difficult to find, it appears Sonic Frontiers is the second-fastest selling Sonic game ever, only sitting behind Sonic the Hedgehog 2, which sold 3.2 million cartridges in two weeks. At the very least, it’s up there.

With numbers like these, Sonic Frontiers is an inarguable success. The next question is whether or not the game will have legs.