How do you unlock poison ivy in Lego batman wii?

To unlock Poison Ivy in Lego batman wii, you must first purchase the Season Pass. Once you have purchased the Season Pass, you can unlock Poison Ivy by completing the following steps:

1. Go to the main menu of Lego Batman wii.

2. Select the "Extras" option.

3. Select the "Season Pass" option.

4. Select the "Poison Ivy" option.

5. Complete the challenge to unlock Poison Ivy.

Once you have completed the challenge, Poison Ivy will be available to use in the game.