yea, I remember plugging loads of quarters there, then getting to level 140-something and the maze disappearing! aughghgg.
my favorite arcade game of the age was tempest:
http://en.wikipedia.org/wiki/Tempest_(arcade_game)
(especially when I gave up on ms pacman)
in fact, I have been looking for a tempest arcade game for some years now. the cocktail table version preferred, but the stand up would be acceptable. Just can't seem to justify the 2grand or so to get one.
as for the 3do, yes a while after these, but still WAY ahead of it's time for a home gaming system.