This is a top class arcade game. There is a series of screens, each
of which has a maze of tunnels to be negotiated. There are keys to
be collected in order to move through an exit to the next screen
and optional treasures for points.
The hazards include fireballs and snakes which must be either dodged
or shot, though shooting loses you bonus points. On higher screens
there are indestructable moving rocks to avoid. The graphics are
excellent and the use of sound above average for an arcade game.
The game employs a protection method I have not seen before. A
program protection card is included which has four coloured bars
in each of 360 cells. On loading, the program asks for the code in a
given cell, e.g. G7. One must then enter the initial letters of the
colours. I presume colour is used to prevent effective photocopying
of the card. It is nice to see a method which does not prevent
the owner from backing up or transferring his program to disc.