You may recall Arcade Heroes ATEI 2007 coverage a couple of months ago where among the many games mentioned, a sequel to Ghost Squad was among the new games that Sega would be releasing this year. According to Sega’s Amusements USA page, that game is now available to operators for purchase.
Taking a quick look at vendor websites, it seems that it will be a while before the game makes it to an arcade near you. BHMVending has it in stock but others such as BMI Gaming, MountainCoin, AVE and others make no mention of the title. This is always a problem with arcade release dates – it has to first get to the distributors, then the operators have to pick it up so it takes longer to find a game you are looking forward to playing.