"She only has two feet??"  Narrator:  "..what he didn't know is that these weren't for her feet, but for an enemy, with many...many feet."  I feel like comic effect of constantly talking about the innumerable leggs on these bugs is essential to cross the chasm between shitty movie and B-movie classic its so bad it's good. 

 Corny sound effects for the splats and sandal throws. Swoosh, splat, squish.