Developer Just Add Water has announced Project V, a first-party Sony game for PSN.
JAW, via Twitter, says a full reveal is scheduled for E3. Sony UK has declined to comment.
"It's first-party for Sony, so we can't talk about it too much, but it's a retro shooting game," chomped JAW boss Stewart Gilray to VG247. "It's for PS3 and PSP.
"We've been working on it for about a year now," he added. "We showed it to Sony last year and they snapped it up straight away."
E3 returns to its old format this year and runs a month earlier from 2nd - 4th June. The show will still be trade-only, for now, but 40,000 visitors are expected to trample through the LA Convention Centre, where publishers will spend fortunes advertising their wares.
Hideo Kojima has already singled out the event as the place he'll announce his next game. GDC keynote absentees Sony and Microsoft are also expected to reveal significant secrets.