Heavy Rocks is the fourth studio album by Japanese band Boris, released in 2002.

[2] Alternate takes of "1970" and "Wareruraido" were used for a single, while re-recordings of "Korosu" and "1970" with Michio Kurihara appear on Boris / Variations + Live in Japan.

[3] Music videos were shot for the tracks "1970" and "Korosu" and were originally viewable on FoodUnited's website.

[5] That reissue was accompanied by an American tour in which the band played the album in its entirety.

"Rattlesnake" has been moved to the end of the album proper, and in its previous spot is a bonus track "Dronevil" (written by Boris).