SNES: Codes For:Super Valis IVSuper Valis IV   

Level Select: 
At the title screen, press (U, D, L, R)x3, SELECTx2, Y, B, and START. 
Easy Mode: 
At the title screen, highlight "OPTION MODE" and press L, L, R, R, B, B, Y, and 
Y, then enter the options screen and select "EASY".