Use the arrow keys to move Grumpy Cat. Click the start flag twice otherwise it may glitch. If Grumpy Cat glitches and goes upside down DO NOT press the left or right arrow. Press the up arrow and while in the air press either the left or right arrow to turn the right way up.
I have just finished making my first platformer, Grumpy Cat - The Platformer. Thanks to LuigiFan5204-TEST for his How To Make A Platformer tutorial.