In the anime, which form were Vegeta/Trunks in at the Cell Games?

[Hector]

Were they in their Grade forms or just Super Saiyans?

 

[Symbiote]

Just regular SS.

 

[Boo Brand Milk]

ASSJ due to muscles

 

[Hector]

ASSJ due to muscles

Then again, Future Vegeta had muscles in the anime-filler flashback when he was killed by Future Seventeen.