Stupid question, but how do I activate Amy's modern outfit? (DLC already installed)

[Hyperknuckles]

On the player select screen, I can't choose Amy's skin. It lets me change Eggman's skin to Lego Eggman by pressing Y on my controller, but I can't change Amy's skin. Pressing X does nothing. If I choose Amy (by pressing A), it doesn't have the option to change her skin in-game either.

I already have the DLC unlocked (entered the code I got from my email for signing up for the newsletter). On my Steam DLC list, it lists the ff.:

Sonic Superstars - LEGO Eggman
Sonic Superstars - Amy Costume

Both DLCs are checked.

Is there something I'm missing? How do I activate Amy's modern outfit?

[Luxen]

The playable character costumes are also selected at the Character Select screen.

• Choose a character (in this case, Amy; characters who have costumes available will have arrows beside their portrait once selected)
  
• Go through your available costumes by moving the control stick or pressing the d-pad left/right
  
• Press A to confirm your selected costume/enter the game hub

You can only use costumes in Story Mode.

[Hyperknuckles]

Originally posted by Luxen:

The playable character costumes are also selected at the Character Select screen.

• Choose a character (in this case, Amy; characters who have costumes available will have arrows beside their portrait once selected)
  
• Go through your available costumes by moving the control stick or pressing the d-pad left/right
  
• Press A to confirm your selected costume/enter the game hub

You can only use costumes in Story Mode.

Thank you! I also found it out after browsing multiple videos. So yes, first press A to choose Amy, and then press Left/Right. This allows you to choose between costumes, before pressing A once again to confirm.