Silpheed/Hidden content

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Continue increase

When the rest of Continue is one, press START in opening demo. The number of Continue increases to 10^[1].

Shield recovery

Connect two controllers in advance. In opening demo, press START . In gameplay, 2 player's increases shield energy^[1].

Stage and visual select

In opening demo, press START . Stage Select is added to the start menu. No 1-12 can play only this stage, No 13-25 can appreciate visual demos^[2].

Voice test

Connect two controllers in advance. In start menu, press 2 player's ++ and select option. Sound Test is changed to Voice Test^[1].

Mania Mode

Connect two controllers in advance. In opening demo, press 2 player's . You can play Mania mode with the more difficulty. In this mode, the score is set to 1 from the beginning and no items appear^[1].

Super mania Mode

Connect two controllers in advance. In opening demo, press 2 player's . You can play Super Mania mode with the most difficulty. In this mode, the score is set to 2 from the beginning, and in addition to items not appearing, optional weapons are not available^[3].

References

Silpheed

Books: Silpheed Koushiki Technical Guide Book (1993)

Demos: Silpheed Hibaihin (1993)

[:File:BeepMD_JP_1993-10.pdf_p142-1] 1.0 ^1.1 ^1.2 ^1.3 Beep! MegaDrive, "October 1993" (JP; 1993-09-08), page 142

[:File:BeepMD_JP_1993-11.pdf_p126-2] Beep! MegaDrive, "November 1993" (JP; 1993-10-08), page 126

[:File:BeepMD_JP_1993-12.pdf_p127-3] Beep! MegaDrive, "December 1993" (JP; 1993-11-08), page 127

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