Answer:
how you get into pal park complete the game 2 times and then catch 6 gabite's then go into snow point temple and go to the ice in the corner and save there and then turn of the game 6 times and find the tm;910 flame cannon and teach it to a gabite ont worry they able then deafet 37 staravia's in spring path and then they will let you in show them your tm;910 then walk in then go back in they will give you tm;90 cheat code.