This is a very nice game and yes its a HackPack not a trainer... This game is kind of old its about 1-2 years old. Even know its old it still has pretty nice graphics engines so its not all old school. You can play it online if you dont want to download, to play it online YOU MUST have a forum account because thats the only way you can get the link to play it without download.
Play Online (Forum link)