As you progress through Arcade Mode, the CPU opponents become more sophisticated. They will block more frequently, punish your mistakes, and utilize their own special moves and even Super Combos. Rival battles are particularly important as they often feature characters with unique AI patterns or specific counters to your chosen fighter.

Strategies for Mid-Game:
- Focus Attack Usage: Start incorporating Focus Attacks. Use them to absorb a hit and counter-attack, or to crumple a blocking opponent for a follow-up combo.
- EX Moves: Don't hoard your Super Meter. Use EX Special Moves to enhance your attacks, break through defenses, or gain invincibility frames.
- Cross-ups: Learn your character's cross-up attacks (jumping attacks that hit the opponent from behind as you land). These are excellent for opening up blocking opponents.
- Punish Whiffs: The CPU will sometimes whiff (miss) an attack. Be ready to dash in and punish these openings with a combo.
- Rival Specifics: For rival battles, pay attention to the opponent's character. For example, if you're Ryu fighting Ken, expect aggressive Shoryukens and Tatsu attacks. Adapt your strategy accordingly.
The key here is to be more proactive and less predictable. Mix up your offense and defense to keep the CPU guessing.