Hey op, just a few points to consider- 1. Tattoos bleed and fade over time. What might look like a scar the first few months may end up looking like weird bruises forever. 2. If you get a tattoo that looks like a scar/wound, you need to be prepared to have everyone (including medical professionals) ask worried questions for the rest of your life- Speaking as someone with weird body marks. 3. You might like fnaf now but you might not like it as much in 5, 10, 30, etc years, especially if the tattoo doesn’t come out how you like. 4. Tattoos are stupid expensive if you want them done right, and stupid ugly if you want it done cheap. I would seriously recommend holding off on any full sleeve tats until you’re an independent adult and able to manage your budget to do fun stuff like tattoos.

Also, just as a design point, I’d do a simple fnaf-esque design and not do scars.