Pokemon Emerald - Rayquaza flew away before Kyogre and Groudon

Question

In Pokemon Emerald I wall walked past the people blocking the entrance for Wallace, now Kyogre and Groudon are there and Steven is asking me to find Wallace but he's not there and neither is Rayqauza.

What should I do - I don't want to restart so do you know any codes?

Answer 1

There aren't really any cheats that will help you progress; but your description of where you are stuck in the story is just vague enough that I suspect you have missed something and may need retrace your steps.

It sounds like you are somewhere in Part 15 or Part 16 of Bulbapedia's walkthrough for Pokemon Emerald.

1. Once Kyogre and Groudon start their battle, you need to head to the bit of land west (left) of the gym and talk to Steven, who will lead you to the Cave of Origin to find Wallace.
2. After talking with Wallace, he'll head off to unlock the Sky Pillar on Route 131. Head there and climb the tower. When you approach Rayquaza at the top, he'll fly off towards Sootopolis. Follow him back.
3. Rayquaza should end the fight between Groudon and Kyogre (you may need to be infront of the gym with the other NPCs).
4. There will be talking and rewards, and the final gym will be open for you to challenge.