Here is a spoof hack for Silk Worm which changes the graphics in the game and gives it a war against Iraq theme. Also instead of a helicopter and a jeep, now you control a fighter jet and a tank.
Silk Worm (USA).nes - NOINTRO
CRC32: 8AF9B095
MD5: 3322B629CC2292D4B547BBB32AB96E7D
SHA-1: C414DE74911CDD8FE22E5E4FBE37CCCAD7DAD614
SHA-256: 298A16C212D951FDDEDBF7F57EAB5CF96EDC645120800F81D414809CBF328D5D