Family Circuit '91

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Unused Graphics#

An unused logo for Knight Games can be found in a headered ROM at 0x81600. It might have been intended for the game's intro, as it is within its PPU bank. However, it's overwritten with the game's logo during the intro.

Also there is an other unused logo "End's".

Knight Games refers to the developer Satoshi Naito, as his last name in katakana is a direct translation of the word "Knight/Night". End's is Masanobu Endo. These graphics were used in other Namco titles. For example, the End's logo was used in The Quest of Ki, so it's possible these were leftovers from another game.

Unused Text#

The Reset routine uses string

KNIGHT

as a RAM signature to test if the game were powered on or just reset.

SRAM Test#

This is one of a select few Namco games which perform an expansion port interface check to determine if an SRAM test should be done. The test only appears to pass or reinitialise SRAM when its size is 2KiB (mirrored across $6000-$7FFF range).

References#