Iron Tank

Iron Tank is a game featuring one of the most pissed-off programmers in the history of the NES.

KNT's Rant
Present at in both the US and Japanese ROM is a rather colorful rant by KNT, who also programmed Guerrilla War. (Note that line breaks were added for readability; the original contains none.)

PROG. NO KNT DESU. NINTENDO NO BOKE AHO-KASU SHINE TSUBURERO- FAMICOM NANKA KIRAIDA-! Aho no Mr.T!! Koroshitannen!