HD Combos are the pinnacle of KOF XIII's offensive system, allowing for incredibly long and damaging sequences. Mastering them is crucial for competitive play. Here's a breakdown:

- Activation: Fill your Hyper Drive Gauge and press HP + HK to enter HD Mode.
- Drive Cancels: During HD Mode, you can cancel a special move into another special move. This is the backbone of most HD Combos. For example,
236P > 214K. - Super Cancels: Cancel a special move into a Super Special Move.
- Neo Max Cancels: Cancel a Super Special Move into a Neo Max Super Special Move.
- HD Cancels: Cancel a normal attack into another normal attack, allowing for extended normal strings.
- Timing and Practice: HD Combos require precise timing and execution. Start with simpler HD Combos in Trial Mode and gradually work your way up.
- Character Specifics: Each character has unique HD Combo routes. Research and practice the optimal combos for your chosen team.
The goal of an HD Combo is to maximize damage and potentially end a round in a single sequence. They are resource-intensive, so ensure you have enough Power Gauge stocks for any Super or Neo Max Cancels you plan to incorporate.