If you manage to save up 3 Extra Lives and then intentionally die 4 times in a single boss fight (using the 3 lives + your natural revive), you unlock the hidden achievement:
"Thanks for playing – Now do it again."
This gives a permanent 5% damage boost across all future saves. goodbye eternity walkthrough aka extra life link
Before tackling the Extra Life Link, you must beat the base game. Goodbye Eternity revolves around a character trapped in a lighthouse on a disappearing island. The key mechanics:
Vanilla Goal: Collect 3 “Remembrance Cores” and light the top of the lighthouse to trigger Ending A (“Alone Again”). If you manage to save up 3 Extra
Ultimately, the "Goodbye Eternity" Extra Life link is a masterclass in integrating gameplay mechanics with storytelling. For the player, it provides replayability and a reason to dive back into the world. It turns a linear story into a complex puzzle where the solution is self-awareness.
Whether you are consulting a walkthrough to find a hidden scene or simply appreciating the story's structure, the Extra Life link serves as a poignant reminder: we cannot change the past in reality, but in the safe confines of Goodbye Eternity, we are allowed to practice getting it right. It validates the player's effort, suggesting that the time spent in the game world was not just leisure, but an education in empathy and consequence. "Thanks for playing – Now do it again
After dying in the Void, you’ll see a prompt:
"You sense a tether to a previous version of yourself. Link?"
This is the Extra Life Link.