Landscaper Doug – Dig Dug the arcade game
https://www.wizard101central.com/wiki/Quest:Bugs_Dig_Doug#axzz7dSvpJYoL
https://en.wikipedia.org/wiki/Dig_Dug
https://arcadespot.com/game/dig-dug/ (Play Dig Dug online)
https://www.wizard101.com/w101playersguide/doodle-doug
Doug is a digger who just wants his lunch. He has gone into the Olde Town drains and been put to work digging by the Sanitation Capo. It is up to your wizard to rescue him.
Dig Dug is a maze arcade game developed by Namco in 1981 and released in 1982, distributed in North America by Atari, Inc. The player controls Dig Dug to defeat all enemies per stage, by either inflating them to bursting or crushing them underneath rocks.
Dig Dug was planned and designed by Masahisa Ikegami, with help from Galaga creator Shigeru Yokoyama. It was programmed for the Namco Galaga arcade board by Shouichi Fukatani, who worked on many of Namco’s earlier arcade games, along with Toshio Sakai. Music was composed by Yuriko Keino, including the character movement jingle at executives’ request, as her first Namco game. Namco heavily marketed it as a “strategic digging game”.
Upon release, Dig Dug was well received by critics for its addictive gameplay, cute characters, and strategy. During the golden age of arcade video games, it was globally successful, including as the second highest-grossing arcade game of 1982 in Japan. It prompted a long series of sequels and spin-offs, including the Mr. Driller series, for several platforms. It is included with many Namco home video game compilations for many systems.

As a completionist, I must state that the Mini Game for refilling manna Doodle Doug is a Wizard101 version of Dig Dug.

The current list of known Wizard City references can be found here.
Although I am well versed in Pop Culture references but I do not claim to have caught them all. Let me know your favorites in the comments and if I’ve missed one you caught, let me know so I can add it to the list.
Text for this article is excerpted from the linked wiki pages
Landscaper Doug and Doodle Doug images are from Wizard101, and are copyright of KingsIsle Entertainment.
Dig Dug images are copyright Atari / Namco USA
They are being used in a way that qualifies as fair use under US copyright law.

