[1][2][3][4] Soda Drinker Pro contains a secret game titled Vivian Clark that can be accessed during gameplay by entering the house in the second level, the park.

[5] In the game's original version, it could be accessed by standing next to a particular rock for over thirty seconds.

[6][7] Vivian Clark is made up of a series of linked mini-games, in which the goal is to beat the highest number of them possible consecutively without failing.

[13] Soda Drinker Pro holds a score of 30/100 on Metacritic based on nine critics, indicating "generally unfavorable reviews".

"[15] The secret subgame, Vivian Clark, has been compared to the WarioWare series, LSD: Dream Emulator, and other abstract games.