MCQ Game to MRQ Game

Can someone help me in converting some of the questions(5 out of 10 questions) in the game from a multiple choice to multiple response question?

I want to keep the same game functionalities.

The file is called Escape - Elb which is a game from the eLearning Brothers.

I have attached a game which has almost similar functionality to create multiple response questions by just changing the value of variable in triggers. The file is called Race for the Treasure - Elb.

I want to implement the same functionality in the Escape game file.

I have attached both files.