2 player mode - simultaneously

Is this within the scope of this recomp? I just imagine since in the DKC games there's two apes present at the screen much of the time, how much work it would be to actually implement a "proper" 2 player mode within this recomp?

The issue names no files, tests, or entry points. Start by determining whether simultaneous two-player support is within the recompilation's scope and locating the existing player and input systems. Done would require an agreed design and a working simultaneous two-player mode, but the issue does not define its behavior or acceptance criteria.

Written by the indexing model from the issue text.