For the secret ending, timing and precision are crucial - you'll need specific dialogue choices during the graveyard scene in chippin' in. When johnny starts talking, watch for these exact responses: "let's do something about that" to inscribe initials, then "the guy who saved my life", followed by "nah, fucked that up too", "what do you want from me?", and finally "ok". But as second chances go, this is your last". Getting these wrong means starting over.

The real trick comes at the rooftop choice during nocturne op55n1, where you'll want to select "think you and rogue should go" but then just wait - dont touch anything for exactly 5 minutes. Johnny will eventually suggest a different approach, which triggers the secret path. That 70% relationship stuff you might've heard about? Not actually required if you nail those dialogue choices, though doing johnny's side content definitely doesn't hurt.

Just remember, this path is seriously brutal - you'll face max-level enemies with no backup saves, and adam smasher hits like a truck. Level 45+ recommended, and you'll want top-tier gear because one mistake means starting completely over. The positioning and timing during these fights needs to be perfect, especially during smasher's second phase when he starts chain-stunning.