No worries, it works now after copy-pasting your exact code into it... must have made some dumb mistake... lol. Thanks for your assistance! Great tutorial.
Just saw your other replies. Glad you got it working. It's possible wall and key were set to the same number in the code? Not sure. Well, feel free to reach out if you run into any other problems. Great work so far! :D The sprites look great and I love the premise of the game, haha.
