Mineuniverse
Data Packs
Cool Functions

Cool Functions

DATA PACK
Add fun, powerful, and useful features to your Minecraft world — all packed into one datapack!
by mattmunich
Download Claim this project
227 downloads
0 likes
Updated Oct 14, 2026
0 hypes
Magic Miscellaneous Tech Utility
Advertisement Remove ads with Premium →

Cool Functions

Add fun, powerful, and useful features to your Minecraft world — all packed into one datapack!


📖 Description

CoolFunctions is a Minecraft Data Pack that adds several fun mechanics and useful functions to the game, including:

  • 🏹 Ender Bow — A custom bow that allows you to teleport to your arrows
  • 🚀 Jet Packs — Five tiers of Jet Packs with increasing fuel capacity, speed, and altitude
  • 👤 Morph System (experimental) — Transform into different mobs
  • 👻 Ghost Blocks — Place phase-through blocks
  • 🧹 Utility Functions — Useful utilities such as ClearLag or give (only for administrators)

📢 Content & Usage Notice

You are free to use this datapack in videos, streams, or showcases, as long as you clearly credit me (for example in the description).

⚠️ Reuploading or redistributing this datapack without permission is not allowed.

Project is licensed under the MIT License


🏹 Ender Bow

📦 Obtaining

Option 1 - Crafting table:

Crafting recipe of the Ender Bow

Option 2 - Drop Crafting:

Drop the following items on the ground:

  • 1 Bow
  • 4 Ender Pearls

The Ender Bow recipe will also automatically unlock when you obtain the required materials.

🎯 Usage

  • Hold right-click, just like a normal bow.
  • You'll follow the arrow until it lands.

🚀 Jet Packs

The Jet Pack comes in five tiers, each providing increased fuel capacity, speed, and maximum altitude.

Each tier also has its own custom color, making it easy to distinguish between them.

💡 The altitude limit is measured as the height above the ground directly below the player(*). Once the maximum altitude is reached, the Jet Pack will no longer provide upward thrust and you will hover around the max altitude.

*Leaves are not counted as ground.

Tier 1

  • ⛽ Fuel: 1 minute
  • ⚡ Speed: Low
  • 📏 Maximum altitude: 15 blocks above ground

Craft:

Craft of the tier 1 JetPack


Tier 2

  • ⛽ Fuel: 15 minutes
  • ⚡ Speed: Medium-low
  • 📏 Maximum altitude: 30 blocks above ground

Craft:

Craft of the tier 2 JetPack


Tier 3

  • ⛽ Fuel: 30 minutes
  • ⚡ Speed: Medium
  • 📏 Maximum altitude: 40 blocks above ground

Craft:

Craft of the tier 3 JetPack


Tier 4

  • ⛽ Fuel: 45 minutes
  • ⚡ Speed: Medium-high
  • 📏 Maximum altitude: 70 blocks above ground

Craft:

Craft of the tier 4 JetPack


Tier 5

  • ⛽ Fuel: 1 hour
  • ⚡ Speed: High
  • 📏 Maximum altitude: 100 blocks above ground

Craft:

Craft of the tier 5 JetPack

Recipe Update: The Tier 5 Jet Pack recipe now requires 3 Dragon's Breath.


Creative Jet Pack

A special Jet Pack intended for creative use.

  • ⛽ Fuel: Infinite
  • ⚡ Speed: Very high
  • 📏 Altitude: Unlimited

Give:

/function coolfunctions:give/jetpack

🕹️ Usage

  • Equip the Jet Pack in your chestplate slot.
  • Sneak to activate it.
  • Stop sneaking to descend with Slow Falling.

Tip: if Slow Falling is too slow for you, consider switching to your normal chestplate to descend faster and switch back just before hitting the ground (-> no fall damage, but normal fall speed!)


👤 Morph System

⚠️ Experimental: The Morph System is still experimental and may not work perfectly with every mob (especially big mobs like the Iron Golem).

🪄 Morph into a Mob

/function coolfunctions:morph/<MobName>

Replace <MobName> with the name of the mob you want to morph into.

🔙 Unmorph

/function coolfunctions:unmorph

👻 Ghost Blocks

Ghost Blocks appear as normal blocks, but you can phase through them.

📦 Obtaining

/function coolfunctions:ghostblocks/<BlockName>

Replace <BlockName> with the block you want to get the Ghost Block spawn egg for.

🧱 Usage

Just spawn it wherever you want

🗑️ Removal

Remove one Ghost Block (the nearest one):

/function coolfunctions:ghostblocks/remove

Remove all Ghost Blocks in a 10×10×10 area:

/function coolfunctions:ghostblocks/removemr

Remove all Ghost Blocks in the world(*):

/function coolfunctions:ghostblocks/ra

*In all the loaded chunks of the world


⚙️ Utility Functions

Cool Functions also provides various utility functions that can be accessed directly through Minecraft's /function command.

🧹 ClearLag

ClearLag allows you to manually remove dropped items from the world. This can help performance when there's a lot of items on the ground.

🗑️ Clear All Ground Items

/function coolfunctions:clearlag

This removes dropped item entities from the world(*).

*In all the loaded chunks of the world

💎 Give Functions

Give an Ender Bow:

/function coolfunctions:give/enderbow

Give a Creative Jet Pack:

/function coolfunctions:give/jetpack

💡 The give functions have been organized under coolfunctions:give/ to make them easier to find and use.


📜 Credits & Usage

Project is licensed under the MIT license

Cool Functions is created by mattmunich.

You are welcome to showcase and use this datapack in your videos, streams, and other Minecraft content, but you have to make sure proper credit is given.

⚠️ Do not reupload or redistribute the datapack without permission.

CoolFunctions - v1.5.3.zip
MC 1.21.6-snapshot, 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10, 1.21.11-snapshot, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2, 26.3-snapshot
Release 2026-08-19 Get
CoolFunctions - v1.5.2.zip
MC 1.21.6-snapshot, 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10, 1.21.11-snapshot, 1.21.11, 26.1, 26.1.1
Release 2026-04-08 Get
CoolFunctions - v1.5.1.zip
MC 1.21.6-snapshot, 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10, 1.21.11-snapshot, 1.21.11
Release 2025-12-19 Get
CoolFunctions - v1.5.zip
MC 1.21.6-snapshot, 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10, 1.21.11-snapshot, 1.21.11
Release 2025-12-17 Get
CoolFunctions - v1.4.zip
MC 1.21.6-snapshot, 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10, 1.21.11-snapshot, 1.21.11
Release 2025-12-14 Get
CoolFunctions - v1.3.zip
MC 1.21.6-snapshot, 1.21.8, 1.21.6, 1.21.7, 1.21.9-snapshot, 1.21.9, 1.21.10, 1.21.11-snapshot, 1.21.11
Release 2025-12-13 Get

Requirements & install

How to use this data pack in Minecraft
Mods needed
None, works in vanilla
Minecraft
1.21.10 – 26.3-snapshot
Install folder
saves/<world>/datapacks

How to install data packs

  1. Download the data pack .zip file (do not extract it).
  2. New world: click Data Packs on the world creation screen and drop the .zip in. Existing world: open .minecraft/saves/<world>/datapacks.
  3. Put the .zip into the datapacks folder of the world (servers: world/datapacks).
  4. Run /reload in game (or rejoin the world) and check it with /datapack list.
Browse more: Data Packs for 26.3-snapshot All data packs

More from mattmunich

Advertisement Remove ads with Premium →

You Might Also Like