Theoretical difficulties:

• Game Journalist:

Extremely easy but still too difficult for game journalist tutorial is 20x less difficult.

• I'm too young to die:

Fairly easy mode for newcomers

• Come on! Don't be rude!:

Slightly harder than ITYTD

• Hurt me plenty:

Normal mode recommended for the first playthrough it's balance between easy & hard.

• Ultra Violence!:

Hard mode animatronics are faster!

• BLOODY:

Animatronics now have new tricks & are very fast! Be careful!

• ULTRA NIGHTMARE:

Absurdly difficult mode.

[Those modes are suggestions they're not 100% certain]