One thing that we need to get to complete this act is the secret handshake that the lovable street starfish knows. It’s essential to getting two golden artefacts, one directly and the other indirectly, but getting it involves travelling beyond the city. To do that you need the gate pass which involves more than a fair share of time travel but once you do have the piece of paper in your grasp, a sizeable overworld opens up to you containing far off locations that are likely just as dangerous to us as everywhere else.
More places beyond the walls of the city will open up in act three but for now, what we need in the world beyond are items that we’ll use to solve a few puzzles. Only one of them is vaguely difficult to grab though there are a few that you may not realise are items at all if you’re not observant.