Cool pac-man variant. I especially like the trapdoors. Hard to give any feedback without having played the original game, but it would be interesting to make some variants of it, but I guess you want it to be as close as possible to the original?
The screen is not centered on the x-axis, and I think the continue markers can be put on the sides and remove the black boarder on top and bottom to maximize screen space in full screen.
The AI also looks a little aimless, in pac-man some of the ghosts hunt you, theres no power up here but instead you can hide quickly by the trap doors.
Interesting to see a remakes of old arcade games. Theres a lot of games, like pre nes, that I have no clue of, so its nice to see some other sources of inspiration