Ive been working in the coop mechanics.
Shirudo cant grab ledges therefore he uses a special power jump to reach higher places thus reaching places that even Ito cant always reach.
But he can kneel down and try to reach Ito's hands.
Ito can then reach Shirudo's hand and climb onto the ledge.
And here is a concept with an upcoming mechanic. If you’ve played Dark Souls, You’ll recognize this as a bonfire or checkpoint. Except here, it will also have an impact on the environment. As you can see the environment changes from dark and gloomy to lit and lively. It may also change other aspects of the environment: opening passage ways, activating platforms…. etc.