mˈɛɾəl slˈʌɡ fˈɜːst mˈɪʃən plˈeɪz sˈɪmɪlɚli tʊ ˈʌðɚ mˈɛɾəl slˈʌɡ ɡˈeɪmz, bˌʌt hɐz tˈoʊnd dˌaʊn ɡɹˈæfɪks fɚðə nˈiːoʊ dʒˈiːoʊ pˈɑːkɪt kˈʌlɚ hˈɑːɹdwɛɹ.
Metal Slug 1st Mission plays similarly to other Metal Slug games, but has toned down graphics for the Neo Geo Pocket Color hardware.