The following are known Game Genie Codes for Silkworm on Nintendo Entertainment System (NES).

• PAXGXALA
  Start with 1 life
• TAXGXALA
  Start with 6 lives
• PAXGXALE
  Start with 9 lives
• SXSVIZVG
  Infinite lives when using the helicopter
• SZVVGTVG
  Infinite lives when using the jeep
• PEEGSPLA
  1 life when using the helicopter after using a continue
• TEEGSPLA
  6 lives when using the helicopter after using a continue
• PEEGSPLE
  9 lives when using the helicopter after using a continue
• PEOKNPLA
  1 life when using the jeep after using a continue
• TEOKNPLA
  6 lives when using the jeep after using a continue
• PEOKNPLE
  9 lives when using the jeep after using a continue
• PAXKEAAA
  Start at stage 2
• ZAXKEAAA
  Start at stage 3
• LAXKEAAA
  Start at stage 4
• GAXKEAAA
  Start at stage 5
• IAXKEAAA
  Start at stage 6
• TAXKEAAA
  Start at stage 7
• SZETZLSA
  Keep firepower and speed-ups for helicopter
• SXOTPTSA
  Keep firepower and speed-ups for jeep
• EEOVYUEI
  Restrict movement area for helicopter
• EEOVGYEV
  Restrict movement area for jeep