based on this marijnz unity-toolbar-extender

this custom tool helps you to test your game easily

when you want to clear all playerprefs you have to follow 3 step:

but you can easily Clear them by clicking on this button:

another button relevant to saving is this button that prevents saving during the gameplay. because sometimes you have to Clear All playerprefs after each test so you can enable this toggle:

Enable Playerprefs:

Disable Playerprefs:

I usually test my games by changing timescale.

you can restart the game by this button:

suppose you want to test your game so you should start game from scene 1(Menu):

you have to find scene 1 (Menu):

then you should start the game:

this button is shortcut to start the game from scene 1: