Kinda fun while it lasted.
I generally liked the style - the simple shapes and fbf.
I'd suggest you think a bit about the line width - it's usually the same width throughout, but is smaller in the scenes in which you use tweening (like Pac-man before he sees the pill or the ghoul before he grabs the kid in the ghost costume). Maybe think about this - maybe use thinner lines for the bg?
Sometimes, your lines got a little sloppy. Don't be afraid to undo and redraw a line until it looks smooth.
The plot itself was kinda unsettling, with the vicious ghoul - quite a contrast to the cute graphics!
The end with Pac-man was amusing, but a bit of a non-sequitor considering that the rest of it had been set in the 'human' world.
It remained entertaining, regardless of flaws. Mainly thanks to the fast-paced action, I guess.