This is a new product made by Aurora Inc. it however has not been fully tested and may be dangerous. however we believe danger is good for weapons so here is the description! The gravity amplifier is a weapon that shoots a glob of our latest gravitational gel which causes targets to have a decreased resistance to gravity and get thrown to the floor. This can cause creatures with weak skeletal structures to be crushed into pieces. The weapon is effective on just about every creature you encounter except the ones in space nowhere near anything emitting gravity. That's all for this product and hope you all purchase it at your nearest store! For more Aurora Inc. tech, visit Here
I swear I've played a game that had a gun like that before but not using gel. But it sounds cool. Maybe the better lvl the gun the more the guns gravity gel affects the enemy. or the better the ammo quality. or you could have a gun that reverses there gravity so for those annoying enemies you just want gone they get launched into space and you could use it on yourself for higher jumping.
I think a gun similar to what WickedSaint said would work. It creates a negative force and causes light-medium enemies to float upwards. As the gel deteriorates, they are then dropped and take fall damage, obviously based on how high they flew. Different versions of this weapon could have a larger or smaller magnitude, so it could scale on low-high level planets. The higher level the planet, the stronger the magnitude must be in order to have an effect. The planet gravity could affect how well this weapon would work too.
Would be a lot of fun. Space-stations with amplified/nullified gravity to fit the station's needs, or just to make a fun-room where you shoot each other with pillows in a no-grav zone. The only problem may be the said instabilities were to happen inside your station. Ouch.