gravity help

[TheGrimreaper]

I was wondering is there anway to make an object say a giant cube where there's gravity on all sides of it making you stick to it with your feet as in you walking on it as if it was a small planet you know like mario galaxy and also there a way to make one side where you stick to it instead of all the way around.So what i need is a way t make a cube where my feet stick to all sides and i need a way to make a cube where my feet only stick to one side of it i try jump pads and changing the jump as to suck me to the pad instead of bouncing me off but it didn't work properly it just made me have a spazz attack on the wall . Also i just want the cube to be affected not the gravity of my jump or anything to that effect i want a way to select a side of a cube and make my feet stick to it.
any help will be appreciated

[GR1M]

I've never seen this done. I'm sure this would require a lot of code, all i would guess of doing is manipulating the environment to trick you into thinking your walking upside down, on walls etc.