Knack was the best selling game during the launch of the PS4 over in Japan.
This is different from the North American and European PS4 launches. Call of Duty: Ghosts and FIFA 14 were the best selling PS4 games respectively.
Check out the top five selling PS4 games in Japan below:
2) Yakuza Ishin
3) Battlefield 4
4) Killzone: Shadow Fall
5) Dynasty Warriors 8