Mean Look is a move that was introduced in Generation 4 (Pokemon Diamond/Pearl/Platinum), which came after HeartGold/SoulSilver.
However, there are some moves in HeartGold that can achieve a similar effect to Mean Look:
* Bind: This move traps the opponent, preventing it from switching out. It has a 1/8 chance to flinch the opponent on each turn.
* Wrap: Similar to Bind, but with a slightly different effect. This move also has a 1/8 chance to flinch the opponent on each turn.
* Whirlwind: This move forces the opponent to switch out. This isn't as powerful as Mean Look, but it can still prevent the opponent from using a specific Pokemon.
If you are looking for a move that prevents your opponent from switching out, you can use Bind, Wrap, or Whirlwind. If you are looking for a move that has a chance to flinch your opponent, you can use Bind, Wrap, or another move with the Flinch effect.
Remember, there are many different ways to approach battles in Pokemon, so you can choose the strategy that works best for you!