My first experience was in my teens, using a disassembler to change hardcoded keybindings in a game (x86) and then defeat some kind of checksum (anti-tamper?) m

My first experience was in my teens, using a disassembler to change hardcoded keybindings in a game (x86) and then defeat some kind of checksum (anti-tamper?) mechanism because otherwise it wouldn't run after the modifications. I didn't think it was particularly difficult. Of course, starting from scratch, there was a lot I had to look up and thus it was rather time consuming. But at no point did I feel it was hard, I just needed to push on.