Lolicore is a genre of Breakcore characterized by heavily distorted or high-pitched anime vocal samples and complex cut-up breakbeats with extreme tempos. Songs are short, usually running anywhere from a few seconds to around three minutes. Lolicore vocals are normally accomplished in a number of ways, either by speeding up a normal-sounding voice or song to sound more high-pitched, using already "child-like" samples, generally from anime, or chopping/slicing vocal samples and making them more acute. Themes range from otaku culture, primarily lolicon media and anime in general, to Japanese culture as a whole.

The usual breakcore intensity along with the use of manipulated samples provides a unique tonal contrast and a nonstop barrage of noises. Kusoikore, a more specific form of the genre developed by CDR, increases even more the harsh and chaotic sound of lolicore. While lolicore is frequently influenced by Mashcore and breakcore at large, it also takes elements from Nerdcore Techno, Noise, and other Hardcore genres, usually Speedcore.