environmental ideas

This is from our kids.  Their names are Jamie, Kaleb, and Isaac.  

First Idea:  

Make space an environment with travel from Earth to the Moon.

Second Idea:

Would like a command to change into mobs

Third Idea:

All things Ninja (clothing, physical attributes (double jump, smoke bombs, hard to detect, move through the shadows, etc).

Fourth Idea:

New weapons to include spears, flail, grenades, 

Fifth Idea:

New metal Tungsten and titanium