1print("Welcome to the Text-based Adventure Game!")

2print("You wake up in a dark room with no memory of how you got there.")
3print("Your mission is to escape the room by finding a key.")
4print("In each step, you will be presented with options to choose from.")
5has_key = False
6print("What would you like to do?")
7print("1. Look around the room")
8print("2. Search the dresser")
9choice = input("Enter your choice (1 or 2): ")
10 if choice == "1":
11print("You look around the room and find a key on the floor!")
12has_key = True
13elif choice == "2":
14if has_key:
15print("You already searched the dresser and found nothing.")
else:
16print("You search the dresser and find a key!")
17has_key = True:
18print("Invalid choice. Please enter 1 or 2.")if has_key:
19print("Congratulations! You have found the key and escaped the room in line 10 were is the mistake?

The mistake is at line 17. There is a colon after "has_key = True" which should not be there. The correct code should be:

17has_key = True
18print("Invalid choice. Please enter 1 or 2.")