To help you prolong the inevitable, try these super weapon codes on for size. At any time during play press...
Up, C-Up, Up, C-Up
Right, Right, C-Left, C-Down
Down, Down, Up, C-Right
Down, Left, C-Left, C-Right
Down, Right, Down, Right, C-Right
Left, Left, Right, Right, C-Up
Up, Down, C-Right, C-Left
Enter the next three codes quickly at the Setup menu:
Press Up, Up, Down, Down, Left, Right, Left, Right, C-Left, C-Right, C-Left, C-Right.
Press Down, Up, C-Left, Down
Game boy mode:
Up, Down, Right, C-Left, Down, Up, Left, C-Right, Up, Down
Thanks to Revolution readers ChrisFarley#1fan and Computer Spawn!