Sony has backtracked on the reasons why WipEout HD has been delayed, now attributing the game's later release date down to a rush to add new features and improvements.

Last week at E3, SCEE president David Reeves said there had been a "really, really tricky technical problem" with the game, and that was the cause for the delay. However, later reports suggested that the game had failed epilepsy tests by some way, meaning the game had required some large-scale redevelopment before it was allowed to be released.

"Regarding the speculation about health issues, we can assure you that we take consumer safety very seriously and monitor it very carefully," Sony said in a statement.

However, the statement then went on to read that the real reason for the delay on WipEout HD was that it was being altered to include extras such as Trophy support and split-screen multiplayer.

"The reason for the delay of WipEout HD on PS3 has been due to the many improvements we have been making and the numerous features we've added to the game," it said.

"These include: eight reverse tracks, four extra ships, two alternative HUDS, two-player offline split-screen and XMB Trophy support. We look forward to sharing WipEout HD with you very soon."

Interesting. Whose explanation do we go with?