Roswell is hatched from a Super Moshling egg which appears in the middle of the set in the zoo when the player completes a Moshling set (with all four original Moshlings). The Bumbletron 9000 Deluxe hatches the egg with the help of a golden spoon.
Phoning home and squeezy cheese.
Mashed potatoes and shaving foam.
- Roswell's enjoyment of "phoning home" is a reference to E.T, a popular movie which features an alien who, like Roswell, phones home.
- Roswell's name is a reference to the Roswell UFO incident.
- Roswell's dislike of mashed potatoes may be a reference to Smash instant mash, said product using the 'Smash Martians' as their mascots who are aliens alike Roswell. The Smash Martians featured in a popular UK ad campaign and as Moshi is a British brand the connection may be intentional.
- Roswell is the only member of the Zoshlings to have a differing species; they are a "Zippity Zoshling" rather than just a "Zoshling".