Body Snatch was an ability that allowed Crypto to take over the body of another Human (it replaced Holobob from Destroy All Humans!). Once in a body, Crypto's energy bar was replaced with that of the current host, which steadily decreased. When it reached zero, Crypto was expelled and the host was killed. If Crypto expelled himself early, the person was alive (albeit, with less health), and if they were an enemy character, they could attack. Body Snatching was required to enter certain areas that were restricted to certain player types (e.g.: a player needing to snatch a Secret Agent in order to sneak past other Secret Agents on an assassination mission. Further into the games, Body Snatch was improved in Big Willy Unleashed: the host's health was delayed in order to hide in the body for longer periods of time. Body Snatching in Big Willy Unleashed was possible by going up to a human, clicking on Body Snatch, catch the brains, and you're in (the body). In Path of the Furon, the ability greatly improved and was able to replenish the host with ease by scanning the minds of others, which made the host a semi-permanent home, until Crypto decided to leave on his own accord.
- In Path of the Furon, it was suggested that other Furons learned Crypto's ability in order to make their abduction missions more successful (quote from a human woman: "I thought the stories of Zeus turning into a swan was funny, up until I found out that an alien had body snatched my husband!").
- Body Snatch was possibly a homage to Invasion of the Body Snatchers, and given that Crypto was named after a parasite, it made more sense for Crypto to learn that ability.