You might have pulled all kinds of pranks on Mr. Grumpy, but now you can have him as a pet with fun games for kids! Adopt mr. Grumpy as your cute virtual pet and keep annoying him whenever you feel like it! Give him a happy family, keep him clean and well fed and maybe he'll even grow to hate you a little less! Hum. No, he won't. Grumpy puppy games highlights.