Help with static encounters

[Carloswwwe]

I managed to make an encounter with Raikou on Fire Red and I plan on making all of the 3 legendary beasts, but after finally making Raikou encounterable, he plays the Ruby/Sapphire trainer battle theme instead of any regular battle theme even when I try changing it.

Here's my script (Using XSE)

'---------------
#org 0x71A5A4
hidesprite 0x201
compare LASTRESULT 0x2
if 0x1 goto 0x81A7AE0
special 0x188
special 0x187
compare LASTRESULT 0x2
if 0x1 goto 0x81A7AE0
special 0x188
lock
faceplayer
setwildbattle 0xF3 0x32 0x0
checksound
cry 0xF3 0x2
preparemsg 0x81A6448 '"ROOOOOAAAARRRR!"
waitmsg
waitcry
pause 0xA
playsong 0x157 0x0
waitkeypress
setflag 0x807
special 0x138
waitstate
clearflag 0x807
special2 LASTRESULT 0xB4
compare LASTRESULT 0x1
if 0x1 goto 0x8163B96
compare LASTRESULT 0x4
if 0x1 goto 0x8163B9F
compare LASTRESULT 0x5
if 0x1 goto 0x8163B9F
setflag 0x2BD
release
end

'---------------
#org 0x1A7AE0
release
end

'---------------
#org 0x163B96
setflag 0x2BD
goto 0x81A922D

'---------------
#org 0x163B9F
setvar 0x8004 0xF3
goto 0x81A9236

'---------------
#org 0x1A922D
fadescreen 0x1
hidesprite LASTTALKED
fadescreen 0x0
release
end

'---------------
#org 0x1A9236
fadescreen 0x1
hidesprite LASTTALKED
fadescreen 0x0
bufferpokemon 0x0 0x8004
msgbox 0x81A63C4 MSG_KEEPOPEN '"The [buffer1] flew away!"
release
end


'---------
' Strings
'---------
#org 0x1A6448
= ROOOOOAAAARRRR!

#org 0x1A63C4
= The [buffer1] flew away!

EDIT: I also don't know why Raikou disappears the second I speak to him. I want him to disappear after the battle not before the battle begins

 

[Greenphx]

I'm assuming Raikou disappearing is because of the hidesprite at the start of the script.