"Ratamahatta" features singer Carlinhos Brown, and percussion and drumming by producer Ross Robinson and Korn's David Silveria.
"Lookaway" features guest vocals by Mike Patton and Jonathan Davis, and sound design/scratching by DJ Lethal, who was still a member of House of Pain at the time and had not yet joined Limp Bizkit.
The 25th Anniversary Edition of the album featured another collaboration with Mike Patton, "Mine".
And on Against:
Singer João Gordo from the Brazilian Hardcore Punk band Ratos de Porão appears on "Reza"
"Hatred Aside" features Jason Newsted performing baritone guitar, theremin and vocals
A B-side from the album, "The Waste", featured Mike Patton on vocals. The album version is an instrumental titled "Kamaitachi" - both versions feature the Japanese taiko troupe Kodo.
Mike Patton has also performed "Lookaway" with Sepultura a few times in concert. Considering these occurrences and his studio collaborations with the band, he seems to really like working with Sepultura.
YMMV • 
Radar • 
Quotes • (
Funny • 
Heartwarming • 
Awesome) • 
Fridge • 
Characters • 
Fanfic Recs • 
Nightmare Fuel • 
Shout Out • 
Plot • 
Tear Jerker • 
Headscratchers • 
Trivia • WMG • 
Recap • 
Ho Yay • 
Image Links • 
Memes • 
Haiku • Laconic • 
Source • Setting