Game shark codes:
 
Always have bowling ball (P1)
300BD43E 0003
300BD442 00FF

Always have cannonball (P1)
300BD43E 0004
300BD442 00FF

Always have twister (p1)
300BD43E 0001
300BD442 00FF

Always have underground (P1)
300BD43E 0002
300BD442 00FF

Always have bowling ball (P2)
300BDA9A 0003
300BDA9E 00FF

Always have cannonball (P2)
300BDA9A 0004
300BDA9E 00FF

Always have twister (P2)
300BDA9A 0001
300BDA9E 00FF

Always have underground (P2)
300BDA9A 0002
300BDA9E 00FF