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Unused Graphics#
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The title screen includes graphics for a less scantily clad fairy girl.
Also included is the text "VER-2".
Error Handler#
Surprisingly, there is a fully functional error handler inside this simple game. Some parts of the game still have some debug asserts, which may call this handler, but in the final release, there are no such errors possible. Unfortunately, the graphics data for the font it's using is not in the ROM anymore, most likely due to lack of free space. The font loading routine is disabled, so you couldn't see the actual screen anyway.
After a restoration patch (add a standard 1-bit ASCII font to any location, enable the font loading routine by patching 0х001425-0хC9:0х00, then set the font offset at 0х001427, and finally set the test crash code with 0х001816-0хСD:0хC9), you may see a result like the picture above.
The full list of handled errors:
Undefined Error
Stack Pointer Underflow
Proccess Stack Overflow
Proccess Stack Underflow
Tag Jump Table Not Found
Sprite Over Than 40 in mearge
Soft Reset Entry
Sprite Over Than 40 in decode
Division By Zero
Double Terminated in Chain Data
Double Terminated in Move Data
Undefined Message Controll Code
Message Stack Overflow
Message Stack Underflow
Enemy V size over
Undefined LCD status interrupt
Item Numbers Over Than 16
Undefined Item
Undefined Trap
Not Found Radder
Not Found Message
Not Found Trap
Not Found Enemy
Not Found Check Bit
UNKNOWN ERROR!!