A pick stage feature is unlocked if both players have cleared the game and unlocked the Green Ranger on any difficulty on a local playthrough.

But that's not really my question, now is it?
I want to play through the game, in coop, with my friend, where we're "power rangers" together, we're a team.

I don't want us to both play through the game, alone and then once we're done with that, finally coop together what we've already done on our own.

Yeah, this should really be built into the game by default.
But for now you can try something else, if you don´t mind.

Just an idea. (again...)
Because IT IS possible to unlock the Green Power Ranger by simply editing a config file, maybe this will also activate the stage select option?

If that works, OP and his friend could do that and play on where they left.
Worth a try.

Originally posted by Thomu:

In the %appdata% folder you'll find a folder named MMPR Ritas Rewind. In there you'll find a file named alpha_settings.json wich you can open with notepad. In the file you'll find the line "num_unlocked_rangers": 5,. Change the 5 to 6 and save the file.

Or maybe there is an actual setting for level unlocks in the config file??
Would be nice if someone could check this out and report if that´s possible... People keep asking for this a lot but don´t respond to possible solutions.