The bottom of the Moon Rover reads "Please bring back Robot Wars", referring to the British game show that ran from 1998 to 2004 where people would build small robots to battle each other. [48:15 in source video]

There is a white Ouya hidden in the Moon stage.

One of the tracks played on the boom box found in the game is the secret disco music from The Stanley Parable. The song is a royalty free track called "Who Likes to Party" by Kevin MacLeod.