How do I create a hidden score that lead to different ending

Hi!

I want to make a quizz game that will have multiple answers. I want that some answers give positive points, and other to give negative points. And, depends on the score the players have, they will se an ending.

I want to make like this:

From -1 to -100 = players will see ending 01

From 1 to 95 points = players will see ending 02

From 96 to 100 points, players will see enfing 03.

How can I do that? Thanks

I think that the easiest way is to create a global variable and add or subtract from it according to each answer.

there is a system expression for that

system>is between 2 values>90-100

actions....