Spy vs. Spy (Game Boy Color)

This page details one or more prototype versions of Spy vs. Spy (Game Boy Color).

'This page or section details content from theSeptember 2020 Nintendo Leak.'''

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Is that all?

An unreleased second English revision, based on the Japan-exclusive NP re-release, was found in the September 2020 lot check leak. While there were two ROMs in the leak (AS6E and AS6P), presumably for Europe and the US, both seem to be based on the European release with the language select.