Classic Sonic benefits greatly from skills that enhance his speed, defense, or ring collection. Here are some recommended builds:

- Speed Demon Build:
- Power Sneakers: Increases top speed. Essential for S Ranks.
- Speed Up: Further increases speed.
- Ring Bonus: Start with 10 rings. Good for early stage survival.
This build focuses on maximizing Classic Sonic's inherent speed for time attacks.
- Survivalist Build:
- Invincibility: Start with a temporary invincibility shield.
- Barrier: Provides a shield that absorbs one hit.
- Ring Energy: Gain a small amount of boost gauge (for Modern Sonic, but Classic can use it for score).
This build prioritizes durability, especially useful for challenging acts or first playthroughs.
- Explorer Build:
- Treasure Hunter: Makes hidden items (like Red Star Rings) glow.
- Power Sneakers: Helps reach hidden areas faster.
- Ring Bonus: Extra rings for safety during exploration.
Ideal for finding all collectibles and exploring every corner of a stage.