Click the Green Yoshi for points. Buy upgrades in the shop in the bottom right of the screen. Buy more Yoshis to help you. You can individually upgrade these Yoshis by clicking on them. Red Yoshis are auto-clickers. Blue Yoshis slowly multiply your point total. Yellow Yoshis randomly buff your clicks. Light Blue Yoshis spawn clickable objects. Purple Yoshis retrieve points when you click. Black Yoshis increase demand for +1 upgrades in the Green, Red, and Yellow Yoshi. Everything else is not done.