According to Penrose, "A voluntary code currently requires warnings to be put either on the packaging of computer games or, as many of them have, on an opening screen before getting to the main game."
This is apparently not up the same standard as the OFCOM regulation for TV. We took a quick look at the OFCOM guidelines and discovered that it states, "Television broadcasters must take precautions to maintain a low level of risk to viewers who have photosensitive epilepsy.
"Where it is not reasonably practicable to follow the Ofcom guidance, and where broadcasters can demonstrate that the broadcasting of flashing lights and/or patterns is editorially justified, viewers should be given an adequate verbal and also, if appropriate, text warning at the start of the programme or programme item."
