ðə nˈaɪntiːnhˈʌndɹɪd nˈaɪnti wˈʌn ɹᵻmˈeɪk fɚðɪ ˈɛks sˈɪksti ˈeɪt θˈaʊzənd jˈuːsᵻz pɹˈiːɹˈɛndɚd θɹˈiː dˈiː ɡɹˈæfɪks fɚðə bˈɔs spɹˈaɪts, wˌɪtʃ wʌz kˈɔːld "ɐ bᵻzˈɑːɹ kˈɑːntɹæst" wɪððə ɡˈeɪmz mˈoʊstli tˈuː dˈiː ɡɹˈæfɪks.
The 1991 remake for the X68000 uses pre-rendered 3D graphics for the boss sprites, which was called "a bizarre contrast" with the game's mostly 2D graphics.