Grandia II: Debug mode 2025-07-05.01

This is a patch for Grandia II that enables hidden debug features.

The debug controls are:

• Holding B+A lets you run much faster than normal
• Holding X and pressing Up or Down lets you float up into the sky or down into the ground
• Holding Y and using the analog stick and triggers lets you reposition the camera.
• Holding Y and pressing X toggles frame-by-frame mode — press A to advance.
• Hold Y and press Start to bring up the debug menu.

Apply the patch with Universal Dreamcast Patcher:

• GDI file: Grandia II v1.001 (2000)(Ubi Soft)(US)[!].gdi
• Patch file: grandia-ii-debug.dcp

A writeup with technical details is available at my website.