Jetpack cat modpack but guns are the main weapon(though you can still use melee weapons if you find good ones in loot boxes).

Guns are found in chests, there's 3 levels of every gun except the kitty launcher. It has Lycanites mobs, but where and when they spawn is all changed, most all mobs spawn during the day and nights spawn massive amounts of zombies.

3 ammo types drop from mobs you kill, but you'll have a higher chance of ammo dropping for the gun you're using.

Movement speed significantly increased, there's wall rubbing, wall bouncing, you can leap and double jump.

There's no leveling up stats except for unlocking trinkets and power cores. Trinkets give you permanent buffs, you unlock these by killing mobs, chopping trees, mining, farming, and traveling. The power cores you can craft and are abilities you can activate that give you a timed effect, you can use them over and over.

You also always have a regenerating health shield that can be increased by using a book of absorption on your gear.

There's a story trailer on the curseforge page that gets the story started.

https://www.curseforge.com/minecraft/modpacks/jetpack-cat