I have a few things.
Beat the "Who's the champion?"in hard with seven coins (only one player)and you will unlock a very hard difficulty.
That is true,in Eager Eevee the computer always get there in like 0.15 seconds and pichu's power plant is so hard in very hard,in fact the computer can finish under 10 seconds!
And,a very good team against your rival.
It tells who you should pick and who they should fight.(i say you can use these guys in round one of the game to win easily,and,this team is for the people with no game pack)
Sudowoodo(use him very first when ho-oh appears.
You might faint when he doe's earthquake,but you can faint him with one rock slide.
Lickitung=use him on anybody(you'll see why. you should probably use him last.)
Heracross=mewtwo (I'm not sure if mewtwo can faint heracross with one phychic,so be careful)
Wobuffet=START with wobuffet.
If you know how to use him,you can take down one of his pokemon,maybe even two.
Politoad=use him only on the last pokemon to use perish song on to win the battle.
Any electric type pokemon=lugia(try using Zapdos.you could use Zapdos if you need back up for Ho-oh,but use him on Ho-oh only in emergencies.
Good Luck to everyone.
Added by: Anon , ID#1869