Having enjoyed moderate success, his work began to draw more attention, especially among student audiences, with 1963's "Youth of the Beast" which is considered his "breakthrough" by film scholars. Suzuki himself calls it his "first truly original film." His style increasingly shirked genre conventions, favouring visual excess and visceral excitement over a coherent plot and injecting madcap humour into a normally solemn genre, developing into a distinctive "voice". Tony Rayns explained, "In his own eyes, the visual and structural qualities of his '60s genre films sprang from a mixture of boredom ('All company scripts were so similar; if I found a single line that was original, I could see room to do something with it') and self-preservation ('Since all of us contract directors were working from identical scripts, it was important to find a way of standing out from the crowd')."