Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Site na nnukwu mmefu ego, Paul Lani-emepụta So Far, So Good... So What! were ihe karịrị ọnwa ise iji dekọọ ya. Mmepụta ahụ nwere nsogbu, n'ụzọ ụfọdụ n'ihi ọgụ Mustaine na-alụ megide ị addictionụ ọgwụ ọjọọ. Mustaine mechara kwuo, sị: "Mmetụta nke So Far, So Good... So What! jọgburu onwe ya, nke ka ukwuu n'ihi ihe ndị na-eri ahụ na ihe ndị anyị butere ụzọ bụ́ ndị anyị nwere ma ọ bụ ndị anyị na-enweghị mgbe ahụ". Mustaine na Lani sere okwu, na-amalite site na nkwenye Lani na a ga-edekọ ụdaume iche na cymbals, usoro a na-anụbeghị maka ndị na-egwu egwu rock. Mustaine na Lani ghọrọ ndị a na-amaghị mgbe a na-agwakọta, na Lani nọchiri Michael Wagener, onye na-emegharị album ahụ. Ya mere Gịnị! wepụtara na Jenụwarị 1988 ma ndị Fans na ndị nkatọ nabatara ya nke ọma. The album featured a cover version nke Mmekọahụ Pistols'"Anarchy na UK"; Mustaine gbanwere lyrics, mgbe e mesịrị na-ekwu na ọ dị nnọọ nụrụ ha na-ezighị ezi. Iji kwado album ahụ, Megadeth malitere njem njem ụwa, na-emeghe maka Dio na Europe wee sonye na Iron Maiden's Seventh Tour of a Seventh Tour na United States. Na June 1988, Megadeth pụtara na akwụkwọ akụkọ Penelope Spheeris' The Decline of Western Civilization Part II: The Metal Years. Ihe nkiri ahụ na-akọ akụkọ ihe mere eme nke Los Angeles dị arọ na njedebe nke afọ 1980, na Spheeris, bụ onye duziri Megadeth na vidiyo maka "Wake Up Dead", kpebiri itinye ha ka ha gosipụta otu egwu dị njọ karịa nke ndị otu glam metal. Mustaine chetara ihe nkiri ahụ dị ka ihe nkoropụ, ebe ọ na-agbakọ Megadeth na "otu ụyọkọ egwu egwu". N'ọnwa Ọgọstụ, ndị otu ahụ pụtara na emume Monsters of Rock na Castle Donington na United Kingdom, na-eme ihe karịrị 100,000 ndị na-ege ntị. Otu ihe ngosi gosipụtara ọbịbịa nke Metallica drummer (na Mustaine bụbu bandmate) Lars Ulrich. A gbakwunyere ndị otu ahụ na Monsters of Rock European tour, mana hapụrụ mgbe emume mbụ ahụ n'ihi nsogbu ọgwụ ọjọọ Ellefson, nke a na-agwọ ya ozugbo.N'oge na-adịghị anya mgbe Monsters of Rock pụtara, Mustaine gbara Behler na...  Ajụjụ: Ogologo oge ole ka Mustaine jiri ọgwụ ọjọọ mee ihe?
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