Understanding the controls is paramount for navigating the treacherous environments and engaging in combat. Castlevania: Bloodlines utilizes a classic 16-bit control scheme. Here's a breakdown:

- D-Pad (Left/Right): Move your character horizontally.
- D-Pad (Up): Climb stairs/ropes, enter doors.
- D-Pad (Down): Crouch, descend stairs/ropes.
- A Button: Jump. Pressing A again in mid-air (with Eric) performs a second jump.
- B Button: Attack (Whip for John, Spear for Eric). Hold B to charge a special attack (John's Whip Spin, Eric's Spear Thrust).
- C Button: Use Sub-Weapon. This consumes hearts.
- Start Button: Pause game, access inventory/options.
- Mode Button: Not used in gameplay, typically for debug or special functions on some Genesis models.
Practice these movements in the early stages to get a feel for your chosen character's agility and attack patterns. Mastering the jump arc and attack timing will be key to avoiding damage and defeating enemies efficiently.