1: The config file is inside a folder called Testing
2: Making one command for each functionality is bad design, do something like "/perdiff set <difficulty>" and not something as broad as "/changeprofile" - it's asking for problems and conflicts with other plugins
3: Why on earth is the "/customize" command not documented here? It's only found in the comments!
4: A config would have been so much easier to modify the values, instead I am limited to what you have coded in (like health)
5: I couldn't find a difference in the health options
6: When picking some of the difficulties I just DIE - what the hell?

7: The plugin does work even on 1.19 paper, contrary to what a lot of people tend to say.
8: It also applies to things such as creeper damage and skeleton arrows, which some other plugins don't do.

I loved it, but I have suggestions for things that need to be in the urgent plugin!

- change everything in the config
- set permissions for each type of difficulty
- define and block commands for each type of difficulty
- cooldown to change difficulty
- permission to change difficulty
- Please continue supporting 1.16

The code quality is not good. Over 6k lines for such a small plugin, holy cow. I recommend you work on your coding experience before making a public plugin people will use. Use this review to learn from, I will update it after you fix your 6k lines of code down to <400 lines

pros cons

pros
gui
5 profile with different invitros
5 unnick dicalltys
from noob to pro
easy install to server
no extr plugin need
cons
1.17 only
will be using this on my school server

Haven't tested this yet.. but I love the concept and I can really use this! I have a few suggestions though; You could make so each difficulty has different mob "natural" spawnrates around the player as they're playing the game. Also, maybe add a cooldown timer to stop people from changing difficulties / profiles.

Big props to the developer. If one day you decide to abandon this project, I'd happily take it over for you if you'd let me. Until / If that happens, i'll use this plugin.

One question though ~ Do Easy and above difficulties allow PVP? It doesn't really specify it on the resource description. Keep up the great work bud.

Pretty solid plugin to help accommodate all kinds of players out there.
Be it a large public server or a small friend server, you can find a way to fit this in. 10/10

This is an amazing mod and very useful :) it is good for my server because its on easy and there are a lot more mobs that easy should have and this helps thanks Trickyboy07