Every sound and sample in this mix was released in 1993. No additional loops or production was used other than: EQ, Pitch, Time-stretch.
Can you pick them out (hint: there are 52 of them)
https://soundcloud.com/mosesonamotorbike/only-all-93-mixtape-mashup
See below for the key to which bands were mashed up in the Only all 93 mix by M.O.M.