O-Chan no Oekaki Logic (SNES)

It's Picross... featuring O-Chan!

Unused Graphics#

Some buttons meant for edit mode (top) and mode selection (bottom).

Region Lockout/Anti-Piracy#

The game runs two different checks to attempt to detect it is a pirated copy: being played on a PAL console, or not having exactly 2KB of SRAM. The latter check is performed by using address mirroring, writing a value to $7007FF then a different value at $700FFF and comparing the two to ensure that the values are the same, which wouldn't if there wasn't exactly 2KB of SRAM. If any of these two checks passes, all button input will be disabled, making the game unplayable. This method is also used in Hashire Hebereke.

References#