Bandai Zackman (1982, VFD, 4 C Batteries, Model# 16296)
Full name: FL Exploration of Space Zackman: The Pit. All of that is written below the display on the game itself. 'The Pit' is licensed by A. W. Zilec Electronics, Ltd. according to the box and manual. This game is a Dig Dug clone, the game play is identical to Atari's Dig Dug arcade game, with the exception of two things: 1- You can't attack the bad guy up and down, only left and right 2- The overall object is to grab a prize at the bottom of the screen, and then get back to your ship that dropped you off at the top of the screen. If you shoot all the bad guys, a new one will just appear somewhere.
Manual can be made available by request (it's written in Japanese).