Cheat Engine Tutorial in 5 minutes

Step 1 is introduction and was skipped to reduce video length. Tbh you can shortly see it at the very beginning of video.
0:00 Step 2 Exact Value scanning (First question)
0:10 Step 3 Unknown initial value
0:32 Step 4 Floating points
0:51 Step 5 Code finder
1:06 Step 6 Pointers
1:43 Step 7 Code injection
2:18 Step 8 Multilevel pointers
4:12 Step 9 Shared code (last)
I didn't include the process to find the pattern of step 9. This video only shows injecting assembly code to prevent the damage of Eric by checking whether the second character of name is 'r'.

cmp byte ptr [rbx+1a], 'r' ; [rbx+1a] is the address of second character of name.
je exit ; jump to exit if value of [rbx+1a] is 'r'