Oh, 'Bad Ending Party' is such a wild ride! I totally get why you'd want to jump straight to ending 5—some of those endings are brutal, and the curiosity to see how it all unravels is real. From what I recall, the game doesn't let you skip directly to a specific ending unless you've already unlocked it. You usually have to play through the branching paths or make certain choices to reach it naturally. It's part of the charm (and frustration) of these choose-your-own-adventure style games—each ending feels earned, even the messy ones.
That said, if you're really determined to see ending 5 without the grind, there might be fan guides or save files floating around online. Some communities share 100% completed saves, or you could dig into mods that unlock all endings. But honestly, half the fun is the journey—the weird detours, the unexpected twists, and the sheer chaos of seeing how your decisions snowball. Ending 5 hits different when you've stumbled into it yourself, you know? It's like the game whispering, 'Yeah, you really messed up this time.'