Use the Arrow Keys/WASD to move when you are not in a battle, and if you run into a battle you must make as much noise as possible to intimidate the enemies. Press E to open your menu, which shows you some random stats. Quick math lesson: This is an ordered pair: (0, 0) The first 0 is the X coordinate, the second is the Y coordinate. The X number tracks how many frames to the left or right you are, positive X is right, negative is left. Y is the same, except with up/down. Positive = up, negative = down. If you get a mission saying to go to (X, Y), then go to the corresponding coordinates.
Credit to @griffpatch for the cat walking animation. Credit to the Scratch community for various sound effects. 100% of the code is mine. The steps variable runs by recording the number of times your player completes a set of costumes in it's animation. Due to the fact that this game changes depending on the noise, unfortunately there can be no music during the fights.