Shatterhand (NES 1991) Game Genie Codes

aka Tokkyuu Shirei Solbrain 特救指令 ソルブレイン

AEVNAIZA - Start with 1 life
IEVNAIZA - Start with 6 lives
AEVNAIZE - Start with 9 lives
GENNZSAA - Play with less energy
AAKKSPPA - Power-ups don't use up gold
AXXAZZGO - Double the value of big coins
ZEXAZZGO - Big coins only worth 1/2
YEEAYZIE - Triple the value of small coins

Sources: GameGenie.com, Wikipedia