My Hero One's Justice 2 (video game)
 

In a surprising turn of events, the new My Hero Academia fighting game includes some giantess content... that isn't Mt. Lady?!

https://www.youtube.com/watch?v=RCigciboP18 (0:30-0:55)

Now, the character in question doesn't technically use their quirk to change their size... but they want their opponents to think they did!

Re: My Hero One's Justice 2 (video game)
 

What makes it lamer is that it's just an illusion. Granted, I can't see how they would go about including a giant-sized character to fight against unless it's some special set piece, like any Oozaru fight in the DBZ games.