Sound — 10
Megadeth was unleashed. This was the record that really blew away the Heavy Metal community. Speed and Thrash are on the menu and not about to run out. It's a record filled with riffs and more riffs, plenty of solos and an insane sonic onslaught. Pure speed, hate and defiance. This was the first record for the Mustaine/Friedman team, and it was a grans slam. Both of these guys raised the bar, and they did it with one arm tied behind their backs.
Lyrics — 8
All the title songs are incredible. "Holy Wars... The Punishment Due", "Hangar 18", "Rust in Peace... Polaris" are only examples of Mustaine's clear vision of society in 1990, which sadly seem to fit our era better. There's no bullshit, just the truth. No sappy/happy songs.
Overall Impression — 10
By far, the only other two Megadeth records that rival this one are "Peace Sells... But Who's Buying" for its speed and brutality, and "Countdown to Extinction" for its heaviness and honest lyrics. The overall RIP record combines everything they do best. This is the definite must-have record by Megadeth.