Extra lives (1-Ups) are invaluable in Castlevania: Bloodlines, especially during later stages. They are often found in cleverly hidden locations, requiring you to break specific blocks or take alternative paths. Here are some notable locations:

- Stage 1: In the ruined castle section, after the first set of crumbling platforms, there's a breakable block in the ceiling that reveals a hidden passage leading to a 1-Up.
- Stage 2: In the 'Labyrinth of Statues' section, near a series of moving platforms, a seemingly solid wall can be broken to reveal a secret room with a 1-Up.
- Stage 3: During the 'Ascending the Tower' section, after a series of Harpies, look for a suspicious-looking block on the left wall. Breaking it reveals a hidden alcove with a 1-Up.
- Stage 4: In the 'Underwater Caverns,' there's a section with strong currents. If you manage to swim against the current to a specific alcove, you'll find a 1-Up.
Always be on the lookout for suspicious blocks, especially those that don't match the surrounding environment. Using your whip or spear to test walls and ceilings can often reveal these hidden treasures. Collecting these 1-Ups can be the difference between a Game Over and continuing your quest.