I have grease biuld-up on my wall above my stove
How do I get this off?

Any help would be great
Thanks

On paint or wallpaper or paneling or any combination of those? Are there cabinets or shelves there too?

Painted sheet rock
And yes there is cabinets

Have you tried anything yet? Is it a flat paint or a semi-gloss?

Semi-gloss.
I have tried scubbing with dawn dish soap and I have also tried goo gone

Is the grease really built up?

Try Murphy's oil soap. We use that at the library where we work to wash shelves and the walls where homeless people rest their heads (just trust me - hard to explain).

Or try a 50-50 solution of white vinegar and warm water.

Test either on a small section.

I hope this helps -- there are many cleaning tips -- Good Luck

Howstuffworks "Uses for Vinegar: Guidelines for Cleaning Your Kitchen"

clean greasy kitchen - Google Search

Sugar soap will remove it but be sure to wash off the substance well or you will end up with a powder film on the wall.

A scouring pad, a lot of cleanser and some elbow greare should do it.