Welcome to PacMan! Best PacMan projects studio:
https://scratch.mit.edu/studios/25336549/
Move PacMan with cursor keys, WASD keys, or by dragging the mouse, or swiping on your touch screen. Pressing a key once is enough for continuous running. Hitting a key in advance you can even steer into a junction before having reached it, hence navigate much quicker.
Please remember to sign in to Scratch if you want a highscore to be persisted ("Scratcher" level required, "New Scratchers" can't store cloud data). More details on that can be found at
https://en.scratch-wiki.info/wiki/Scratcher