how to make a very slippery material?

how do u make a very very slippery material , I know the basics and u must make a physics material and there is the setting friction , but the setting only allows you to set it to 0 as the lowest. , what if you want much more slippery than that. 0 is not good enough I want much more slippery effect. please help im stuck.

2d game

0 is as slippery as it gets. It is like not touching anything. To fake the slipperiness you will have to check on which material you are standing on and then add additional forces. You should raycast down and check on which object you are standing on. Better put all slippery objects to a specific tag, and using raycast check the tag of a hit.