Now to answer the obvious question, does it have MUSIC? Yes HORRAY! Many thanks to elhobbs for making musplay.c examples and quite a few other stuff!
This update (v1.4) has brought a few new things and options
First of all, there is a new menu
It looks nice and such, however the only new functional menu is "Screen Mode"
Screen Mode has 3...
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Source: https://gbatemp.net/threads/dsdoom-svn.364770/