The display - promoting the video game Hitman, which is about a deadly assassin - was on show at Virtual Games, in Charles Square, Bracknell, for nearly two weeks when Trading Standards approached owner Paul Kenwright following a complaint.
He said: "They want us to change our windows, but I don't think we should really have to do that.
"It's been there for a awhile now and no-one has said anything."
Bracknell Forest Council spokeswoman, Vicki Judd, confirmed there had been one complaint about the shop window and that the council will be passing the comments onto the Advertising Standards Authority (ASA).
But Mr Kenwright argued: "We just want our displays to be a bit different. We're not trying to shock anyone, we just want to have a bit of fun."
To read the full story, pick a copy of the Bracknell News, out tomorrow (Thursday).
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