It is not too bad, I mean it's Pacman, and the game plays like it so good work there.
Nice try, but need to improve the graphics and controls, unfortunately your character is bumping and bumping on the walls.
Suggestions to make it better. Improve pac-man movement (so it can move from a up/down corridor to a left/right one without problems) Add more levels, fruits bonuses, make the "ghosts" move on the opposite direction when you eat a big ball like in the classic game.
After you have all things from classic pac-man in (which is what users will expect) on the later levels you can go original and add different power ups like faster movement, ghost walk (you can go throu walls) shooting. aka show what your game can offer that others cannot. All in all a better improvement over the old game. Kudos :)