Sony Computer Entertainment Worldwide Studios boss Shuhei Yoshida says he's "disappointed" with some of the early PS4 software review scores but isn't worried about the impact they'll have on the console's launch.
"It's disappointing to see some of the low scores," Yoshida told GamesIndustry.biz. "I haven't spent enough time reading reviews, but I would characterise them as mixed.
"With this launch there are lots of games coming out, so the media must be very busy going through the games quickly, and especially since the online functionality wasn't ready until in the last couple days. So we have to look at how much time they spend on what aspect of the games and how that may be contributing to some of the lower scores.
"It's disappointing but I don't think it's worrisome for the launch of the system," Yoshida added. "I've played through all of our games, Killzone, Knack and Resogun, and I totally enjoyed playing through these games. I'm now on my second run of Knack and Resogun at a higher difficulty - these games really grow on you when you play more. I'm very confident that once you purchase these games and play, you'll be happy that you've done so."
Commenting further on the critical response to Knack, a game headed up by PS4 lead system architect Mark Cerny, Yoshida said he'd hoped the title would score higher.
"The game wasn't designed [to meet specific] review scores - I was hoping Knack could score in the mid 70s and last I checked it's around 59-60, so I'm hoping it goes up. The game uses only three buttons to play, so it's not the type of game reviewers would score high for the launch of a next-gen system.
"The game was targeted as what we call a second purchase; you know, people may purchase PS4 for Call of Duty or Assassin's Creed or Killzone, but if they also buy Knack, this is a game that you can play with your family or your significant other.
"It's a message that as a platform we are not just trying to cater only to the hardcore, shooter audience - we are looking at all kinds of gamers - but Knack is a great game for core gamers as well because when you up the difficulty level it becomes a really tight, tense action brawler.
"But the goal was to design it to be played by anyone, even someone who's never played before. So it wasn't aimed at high review scores, even though higher would be appreciated! Killzone is different - it's definitely targeted to the core gaming audience and we're still waiting on more reviews because some sites are saying they played single player but not enough multiplayer. So I'll wait with my personal judgment until I read more reviews."