On their newest platter "Killbox 13" Overkill retain their more recent style heard from the post "Horrorscope" records, a combination of "I Hear Black" and "From the Underground and Below". Starting with "Devil By the Tail", as always, the album starts off aggressive but lacking the thrash quality that use to be a trademark, yet it still including some killer riffs.

"The One" and "No Lights" goes for a crunch and punch delivery with Dave Linsk providing catchy leads. Bobby Blitz sings as wicked as ever, and his tone is evident track to track, acting as a frantic maestro to go with the equally perplexing music. Their Sabbath influence is heard on "Crystal Clear", then the double bass returns for a moment to let you know who you are really listening to. "Until I Die" is haunting with its clean guitars then it kicks in and hits a groove. The CD closes with a more aggressive note for the tracks "Unholy" and "I Rise". This current expansion of the bands arrangements works well and shows growth with their continued evolution, proving they refuse to let things get stale within their genre.