Ratchet and Clank: Rift Apart launches later this week, yet developer Insomniac is referencing one of its old games strangely frequently. Over the past week, the studio has called out Sunset Overdrive in its promotional materials for Ratchet and Clank at least three times, seemingly indicating that it's teasing... something.

Today, the Insomniac Twitter account--which has been entirely dedicated to the Rift Apart launch--posted an image depicting the inflatable Sunset Overdrive mascot Fizzie bursting through a dimensional rift. The photo also shows a Sunset Overdrive character wielding one of the game's cartoonish weapons. This tweet was posted nearly simultaneously with a post from the Fizzie Twitter account, which had previously been dormant for over two years.

The first reference to Sunset Overdrive, though, was snuck into a trailer that Insomniac and Sony put out last Friday. The video features a TV on an entertainment center that's decorated with all manner of Ratchet and Clank merchandise, but a Fizzie toy is also visible on the top shelf behind a Ratchet figurine.