His adventure takes him to the basement (which is also Eddie's bedroom), the bathroom, the kitchen, the bar room, Roger's room and finally his research room. Upon its discovery, the locket transforms Roger's soul into a cockroach, and transports him to a mysterious sewer system connected to every section of the bar. But after a small argument with Eddie, he remembers a little trinket that he had gotten in his early childhood: a cockroach-patterned locket that belonged to his deceased mother, Angelina. Roger, one of Eddie's tenants, has stolen a million dollars worth of loan money from a science corporation he had previously worked for and is planning to leave for Mexico City to start a new life. The story takes place in 1995 in a rundown bar owned by Eddie Battito.

Got Game Entertainment re-released the game in December 2004 as Bad Mojo Redux, packaging it with a DVD containing a variety of extra material.

The gameplay consists of guiding the cockroach through a series of puzzles. The storyline in Bad Mojo is loosely based on Franz Kafka's 1915 novella The Metamorphosis Roger Samms' name is an imperfect anagram of the lead character's in Metamorphosis ( Gregor Samsa), and a cat called Franz appears in the game. An accident with his mother's enchanted locket unleashes a curse - the titular bad mojo - that turns him into a cockroach. The player is cast as Roger Samms, an entomologist planning to embezzle money from a research grant to escape his sordid life above an abandoned bar. Bad Mojo is an adventure video game by Pulse Entertainment, released in 1996.

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