Bloodborne is not an easy game, so naturally someone has completed the game without leveling up once. BOYvsVIDEOGAME did so without using guns or visceral attacks. He started off with the Waste of Skin class.
He also avoided using any glitches and didn't skip any of the levels. The YouTuber also made separate playlists for his game walkthrough, boss battles, and Chalice Dungeon boss fights. Of course, the videos contain spoilers.
In the videos below you can see the Yahar'gul in the Unseen Village area while the other is the Blood Starved Beast boss battle.
You'll probably never be as good as this player (admit it) but we've a series of guides which might help you play the game.
