not mobile friendly click start to start and click any of the colors at the bottom to change your substance. then click the rat to use the substance. to reset the mouse, click r. you can also combine mutations. some combinations won't work if you did combine 2 of them that don't work then click r anyway or else you can't combine anymore. also you get 10 coins every 30 seconds. (i just made this so there may be glitches) please like and favorite this took me like half a week. i added a fun setting for people who don't want to grind for coins.
me this took forever
