Sony's Shuhei Yoshida has admitted to being disappointed by the PS4's first-party review scores.

Reviews of first-party PS4 games including Knack, Killzone: Shadow Fall and Resogun were published yesterday (November 13).

While Resogun received largely positive scores, Killzone received mixed reviews, while Knack was criticised by the likes of Eurogamer and Gamespot.

Yoshida told GamesIndustry International that while he was disappointed by the review scores, he's not worried about the impact they'll have on the system.

"Yeah, it's disappointing to see some of the low scores. I haven't spent enough time reading reviews, but I would characterise them as mixed," said Yoshida.

"And 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 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."

Sony

Yoshida said that the games are likely to grow on people the more they play, before describing Knack as a "second purchase" game.

"The game wasn't designed [to meet specific] review scores," Yoshida continued. "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."

Finally, Yoshida said that the company had learned from the PS3's problems at launch, and was in a better place to re-enter the industry.

The PlayStation 4 will be available from November 15 in North America and November 29 in Europe.

A day-one update, which is required for DVD and Blu-ray playback, remote play and more, is available to download ahead of launch.

The console was recently taken apart by a Sony engineer, revealing the internal design of the system.

Watch Digital Spy's hands-on video preview of the PlayStation 4's hardware below:

This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. You may be able to find more information about this and similar content at piano.io