Sony’s top 2014 games: 5 of 9 test as unsafe

Games (and films) in animé art style typically contain many instances of unsafe image sequences. This screen shot is from Fairy Fencer F.

Games (and films) in animé art style typically contain many instances of unsafe image sequences. This screen shot is from Fairy Fencer F.

Roughly half of the year’s most eagerly anticipated made-for-Sony video games could set off a seizure. I tested the seizure safety of the nine Sony-only titles selected last month by GamesBeat for its “early holiday gaming guide.” Five games failed the safety test, indicating that their graphics exceed safety guidelines for flash, intense color, and/or patterns known to trigger seizures.

Watch out for animé graphics 

In this selection of games exclusive to Sony platforms, those made for the PS3 were more likely to trigger seizures than those for the PS4 or Vita–probably because the PS3 games in this batch of titles were overwhelmingly illustrated in animé style graphics. Animé is the animation style used in the infamous Pokémon cartoon incident in Japan, when hundreds of Japanese children viewing the cartoon experienced seizure symptoms simultaneously and went to emergency rooms. 

Here are the results for the nine Sony games:

Sony chart fixed



Testing methodology 

I run downloaded gameplay clips and promotional trailers for each game and submitted the sequences to the Harding Flash and Pattern Analyzer. The FPA is widely used by producers and networks in the UK—including by the BBC—to ensure seizure safety of all material on broadcast TV. It examines video sequences for very specific and measurable image qualities that researchers have found can trigger seizures:

  • rapidly alternating light and dark images (flash/flicker)
  • certain stripes and geometric patterns with high contrast
  • large areas of very bright (“saturated”) red
  • problem images take up more than one fourth of the screen
This screen from Fairy Fencer F from a sequence that exceeded safety guidelines for screen area is completely filled with saturated red.

This completely red screen from a sequence in Fairy Fencer F failed the safety test due to excessive saturated red color.

Sequences submitted for analysis are video clips available online, some of which are official marketing and gameplay trailers; others are gameplay sessions posted by reviewers or fans. I do not test fans’ sequences from games that were modified with other software.

If the first clip I test of a game fails the safety test, I note that and move on to test the next game. I typically test at least 4 or 5 additional clips of a game if no safety violations are found initially. If I have a high level of suspicion due to the game genre and/or overall look of the sequences that there might be unsafe “footage” that I haven’t yet found, I may test a lot more clips. For example, knowing that the fast-moving views in racing games may be seizure-inducing, I tested more than a dozen Driveclub clips.

Similarly, the art style and pace in other games look highly unlikely to pose a seizure risk–I tested only a couple of clips from LittleBigPlanet 3.


Your results could vary. Games I’ve listed as safe could have seizure-provoking sequences that I was unable to locate. Furthermore, the seizure threshold of individuals is affected by a number of factors including illness, hunger, stress, fatigue, and the player’s menstrual cycle, among others. So a game that seems OK the first time it’s played may trigger a seizure under different conditions.

I’ve already tested what GamesBeat editors consider the year’s biggest games for multiple platforms. In upcoming posts I’ll share test results on their choices for PC-based games and for games exclusively built for Nintendo and Microsoft gaming platforms.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s