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The like to refer to this great post about overlap errors. Based on that post, the issue here is that “the programmer had stored a sprite inside a variable, then stored SOMETHING ELSE inside the variable”. If you take a look on line 53, a var aircraft variable is declared but it is already declared on line 5. So, I would suggest taking out the var on line 53. That might lead to a few other issues.
The health and score are overlapping but that can be adjusted with some tweaks to the x and y of each.
I noticed that “100” is placed in the text box on line 63. The “” around 100 mean the 100 will never change. How can the programmer change “100” from this literal string to the actual variable score?