Pokémon Helix and Dome are a pair of Generation V Pokémon games. They allow trading with other games from Generations I, II, III, IV, and V.
In Pokémon Helix and Dome, it is possible to play games with Pokémon to increase their happiness and occaisionally increase their growth rates. These game are unique to each Pokémon's type/types.
Like all games, Pokémon Helix and Dome has new Pokémon introduced in it. (List coming soon, again!)
In addition to letting the player choose his/her name and gender, Pokémon Helix and Dome allows the player to select their character's skin, hair, and eye color.