Many characters have attacks that can go under Akuma's fireball, but some have moves that can straight up nullify it.
#2 Tekken Fun Tip
Did you know you can choose your win pose by holding an attack button after winning? Alisa got a very cool easter egg during one of her poses too!
#3 Tekken Fun Tip
Heihachi has a fun throw known as Headbutt Carnival, that only works on certain characters.
On hit, players can reverse it by pressing any punch button. This can go indefinitely until someone loses the round.