ROM Hack Other Gen Hacks

[Xizziano]

Not sure if this has been posted or brough anywhere im still new and learning my way around so i figured if this was i'd be told about.

Any hacks that mix 6th gen pokemon yet, especially the legendaries?
at least mega forms?
i know some gba hacks have some 6th gen and mega forms like 'OA emerald an'
'Pokemon Ruby Generation Discovery'