Set a variable whenever the game is loaded

I want to set a global variable to 1 whenever the game is loaded/new game is started. I have tried adding

$game_variables[100]=1

to multiple places in PokemonLoad but I keep getting syntax errors and such. Is there an easy way to do this? I only want it set when the game is loaded/started, and can be changed like normal, but is always at 1 when the game starts. This doesn't have to do with events. I am making a script that needs to have a variable set to 1 when the game is loaded

I hope that i understood you right.
if you want to do this when the game loads, go to the script "PokemonLoad" and add it behind line 427, for example, change this:

$game_variables = Marshal.load(f)

Click to expand...

to this:

$game_variables = Marshal.load(f)
$game_variables[X] = Y;

Click to expand...

while X is the variable id and Y is the number.

for a new game, go to the map "Intro" and just add this in event "Intro" somewhere.

sry for my english, and good luck in your game :)

Thank you! I figured out for new game to just use Intro but I couldn't get Load. Thanks!!!