
Cool Functions
Add fun, powerful, and useful features to your Minecraft world — all packed into one datapack!
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About this Mod
🧩 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 (with custom advancements)
- 👤 Morph System (experimental)
- 👻 Ghost Blocks
- 🚀 Jet Pack (temporarily without custom texture)
- 🧹 Utility functions (e.g. ClearLag)
📢 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 or credits).⚠️ Reuploading or redistributing this datapack without permission is not allowed.
📘 Main Guide — How to Use
🏹 Ender Bow
📦 Obtaining
- Option 1:
/function coolfunctions:enderbow/giveenderbow - Option 2: Craft

- Option 3:
Drop 1 Bow and 3 Ender Pearls on the ground
🎯 Usage
- Hold right-click, just like a normal bow
🚀 Jet Pack
Tier 1:
- 1 minutes of fuel
- Low speed
Craft:

Tier 2:
- 15 minutes of fuel
- Medium-low speed
Craft:

Tier 3:
- 30 minutes of fuel
- Medium speed
Craft:

Tier 4:
- 45 minutes of fuel
- Medium-high speed
Craft:

Tier 5:
- 1 hour of fuel
- High speed
Craft:

Creative JetPack:
- Infinite fuel
- Very high speed
/function coolfunctions:jetpack/givejetpack
🕹️ Usage
- Equip it in your chestplate slot
- Sneak to activate
👤 Morph System
🔄 Morph into a mob
/function coolfunctions:morph/(MobName)
🔙 Unmorph
/function coolfunctions:unmorph
👻 Ghost Blocks
📦 Obtaining
/function coolfunctions:ghostblocks/<BlockName>
🧱 Usage
- Place the Ghost Block spawn egg on the ground
❌ Removal
- Remove one Ghost Block:
/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
🧹 ClearLag (Manual)
🗑️ Clear all dropped items
/function coolfunctions:clearlag
Available Versions
How to Install Cool Functions on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set datapack Loader
In the panel under "Egg", select the datapack loader and matching Minecraft version (26.1.1).
Install Mod
Open the mod browser in the dashboard and search for "Cool Functions". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.1, 26.1, 1.21.11 (+9 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Cool Functions server crashes on startup – what to do?
Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.1). You can switch loaders with one click in the panel.
Is Cool Functions compatible with datapack and fabric and forge and neoforge and quilt?
Cool Functions officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 26.1.1, 26.1, 1.21.11. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Cool Functions – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Cool Functions consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Cool Functions with just one click on your server.