What is the name of the green things used for upgrades, why are they removed from the game and what is a decent price if I am lucky enough to find one who sells it?

Possessed Ectoplasm.

and you can buy one of mine for 20k points

Don't you think thet this is too much points?

There will be mods in the map soon

Sounds wery nice

I think you can keep that one for yourself then.

lol..