Thunder Spirits (SNES)

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Configuration mode

Hold Select and press Start at the title screen.

Extra credits

Rapidly tap B at the title screen. Each time a tone is heard, one additional credit has been added to the current total. When the demonstration mode begins, press Start to return to the title screen and continue tapping B.

Option screen

Hold L + Select and press Start at the title screen. Alternatively, hold Select and press Start at the title screen. The configuration options will allow the number of points for a bonus ship and the starting number of ships to be adjusted.

Special configuration mode

Complete the game, then hold Select and press Start at the title screen when it reappears after the credits.