Remove “category” from Category Address

Hellom

I want WordPress make for me these addresse:

For single page:
https://www.test.com/game/game-test/
(it is ok, with mod-rewrite i can do this)

and for Category:
https://www.test.com/game/

( in Standard, addresse of this category is:
https://www.test.com/category/game/
I want to remove category from addresse )

Please help.