**NEED help with dk style game**

I have a donkey kong style game going on, and im having some trouble. I need to know how to

make scroling terrain
make enemies die when i throw a coconut at them
throw a coconut
and create tangible structures
and such and such

Any help would be greatly appreciated. if it helps:

character mc - instance - jumpman
background - instance -background
coconut - instance - coconut
objects are labelled - objects

Thanks
Greenman.