Deuterium Oxide Extreme Gravity and Pressure Emission Bomb
To use it correctly, Pull up Console and type the following for the mentioned effects:

!set temp pump 9e37 (Or -9e37 for Negative Pressure)
!set temp gpmp 9e37 (Or -9e37 for Positive Gravity)
!set temp pbcn 9e37
If you use these, the bomb detonates, it will push everything back with pressure, and the gravity will pull land mass and things toward it.

Yea, it uses the console because my Life Increase and Life Decrease elements didn't make it into TPT. Deal with it (If you want to see the full effects)!

Explanation:
Stage 1: The life of PBCN (NEUT) decreases from 200 to 10, Activating the Clone Cycle.
Stage 2: The Life of PUMP decreases from 300 to 10, Activating it and triggering the immense Pressure Release.
Stage 3: The Life of GPMP decreases from 350 to 10, Activating it and Triggering the immense Negative Gravity.
Stage 4: (May not happen every time!) Some time after the bomb explodes, the NEUT will react with DEUT, causing the TEMP of NEUT to jump to 9000.00C and it will also produce another immense shock-wave of pressure.
Stage 5: Sit back and watch it decimate any destructible city you place in above, under, or in.

It leveled City with Subway 2 (V.2) with no problem. Try it out for yourself!
I placed it in the middle of the Realistic Bunker and it almost completely destroyed it BEFORE the pressure and gravity stages even began!

***If placed at the bottom of the bunker, it will VENT the REALISTIC BUNKER into SPACE! ---> NO JOKE!***

WARNING: If ANYTHING touches the bomb after you type the required console commands in, it could AUTOMATICALLY detonate!

Enjoy!

I posted it, so now you can find it! It's under the name of "DEUT E.G.P.E Bomb Variants".