Suicune:
Go into Tin Tower wen u have done something,(I forgot), and Suicune will be there at lvl 40 or 35.

Starter:
Choose Cyndaquil he is the strongest for the gyms.

Pokemon Duplication:
Go to a PC and select the pokemon u want to dupe. Put it in the PC and then close down the PC. Save the game but when it says SAVING, DON'T TURN OFF THE POWER... turn the game off right wen it says that and turn it back on. Look in your pokemon party. You will have your pokemon, and if u look in the PC, you should have a duplicated pokemon! Sometimes this does not work. Dont blame me if it doesnt because it did for me.

Rare Candy:
Go to Goldenrod's Radio Tower and do that question thing on the 2nd floor and u get a token or something. If u get 5 tokens u get a rare candy and then u can duplicate it with your pokemon! (Above) Then u hav unlimited rare candies.