The Chao that gives Luck in Sonic Speed Simulator is the one with the luck stat, and the base Sonic Chao line is shown as giving luck in recent showcases. Community posts also point to high-luck Chao like the Crimson Whisp for stronger luck builds, and older guides note that luck affects your chance of getting better friends from vending machines.

Quick Scoop

For a simple answer, look for Chao with luck on their stat line. A recent Sonic Speed Simulator showcase says the Sonic Chao gives the luck stat, while a Reddit discussion mentions Crimson Whisp as a high-luck option.

What luck does

Luck is used to improve your odds of getting better friends in vending machines, according to the Sonic Speed Simulator wiki discussion. That makes luck Chao useful if you are trying to farm better pulls instead of raw speed or event stats.

Good luck Chao mentions

  • Sonic Chao , which is explicitly described as giving luck in a showcase.
  • Metal Sonic Fast Friend , which was shown giving luck and stamina, though that is a friend rather than a Chao.
  • Crimson Whisp , which a player called a high-luck Chao in a recent Reddit thread.

Practical tip

If you want the best result, prioritize the Chao that says luck in its stats and then compare rarity or upgrade level. In Sonic Speed Simulator, stat boosts can change a lot with fusion or leveling, so a lower-tier luck Chao may still become useful if upgraded.