after get involve with lot of drug and poor jack go absolutely nuts and begin kill all who enter the warehouse where he work . a friend of mine suggest this film to me and say while jackhammer massacre be the scariest and gory film i have ever see . those be his word exactly . from the title alone i know this wouldn not be the epic horror picture my friend described and but wow and this movie really and really suck . every cliché in the book have be roll up into ninety minute of pure torture . it seem every 5 minute or so some miscellaneous character and always jackhammer fodder and enter the warehouse and just to meet up with jack and die a gruesome death . there a very generous amount of gore and though the make up effect themselves vary in quality from pretty decent to chintzy . the acting be flat and the character while uninteresting and but that to be expect . director or co writer joe castroone of the effect artist at sota effect and a company who work in the past have usually be less than stellarwould have be much good off handle the gore rather than write or direct and because he show no sense of pace . maybe that and combine with the film predictability and be what make in so hard to sit through . tiny spoiler ahead . jackhammer massacre have good gore but nothing else go for it . skip it unless youre desperate for entertainment and or if you think a character be kill off via a jackhammer up the anus be funny ( i will admit the scene be pretty funny ) . and no and i do not kill the friend who recommend this to me and he redeem himself by show me shaun of the dead . negative .