The Holographic Orange Lines (as in your screenshot) point to undiscovered Meld containers and are always the same sound. The Soundwave-y Lines point to undiscovered Pods (and are different sounds based on the makeup of the pod)


It seems like the first non-tutorial stage just has bugged ladders on the iOS version. I was able to climb ladders and pipes on every stage but this one by switching layers (two finger swipe) to the roof. Even after starting a new file, this was the only stage where I could not access the roof.

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