I made a block that looked like a slime. By modifying terrain.png. 

I created the block "slime" on my server and this was the result.  

Then, I used /model so I could turn into the block "slime" 

Then I discovered a plugin that spawned mobs

 

I modified the plugin and it spawned slimes as a hostile mob

 

 

 

And it worked!!!

This works with any block/custom block

When I was taking screenshots, the slime killed me

 

 

 

 

Hostile mobs kill you if you touch them 

 

thats pretty cool tbh, i mean, you could atleast tell us what plugin that allowed the monsters to spawn, though.

4 hours ago, Desaxu said:

thats pretty cool tbh, i mean, you could atleast tell us what plugin that allowed the monsters to spawn, though.

use /lb and /bot

 

Just now, Rulja1234 said:

use /lb and /bot

 

..Oh, yeah, forgot about those.

 

/lb for the custom block, /bot for adding it, then /model bot, /botai [or /bai] for the hunt ai and such.

The plugin to spawn mobs is:mobs.cs

The mobs only spawn in a world named "survival"

 

The original creator of the plugin is unknown

(If you unload the world survival the plugin starts chrashing your game and server)