Click the Green Flag to start and then click the Space Bar to send a random number of tacos to the penguin. After each 10 tacos he eats, he will get a little fatter.
Credit goes to my son JohnSwan (https://scratch.mit.edu/users/johnswan/) for both the concept and much of the code on this one! The taco-eating penguin and getting fat came from him, and I helped him work through some of the math and timing issues that he hadn't really messed with before.