Lucy Fleetfoot is a secret agent for Secret Operations League ("SOL"), whose
mission it is to rescue stolen Pokémon from an evil organization known as the "Phobos
Battalion." In story mode, the player's goal is to stop the Phobos Battalion and
to discover why it is stealing Pokémon.

How to progress through the game: Using the stylus, players can line up four
Pokémon puzzle pieces in a row (vertically or horizontally) to create a "Trozei"
and add Pokémon to their Trozei List. Once a Trozei happens, it can be turned
into a chain reaction by lining up three in a row, and then two in a row, to
clear those pieces from the screen. The longer a player keeps a Trozei going,
the higher the score. However, if the pieces stack up too high and reach the top
of the screen, the game is over.

Another game objective is to complete the Trozei List. This list contains all
Pokémon that a player has been able to Trozei. Some Pokémon are harder to Trozei
than others. Players can increase their chances of finding rare Pokémon by
playing wirelessly with friends. Players also can frequent the "Agent Café" and
use the "Espionage Mode" to exchange "Agent Cards" with friends for a chance to
catch other rare Pokémon.

Special powers/weapons/moves/features: There are four modes to play in
Pokémon Trozei: two single-player, a battle mode for two players to go against
each other and a mode for teaming up with a friend. The multiplayer modes use
the DS wireless function. The game also has a wireless distribution mode where
players can relay a playable demo version of the game – Pokémon Trozei Mini –
that allows other players the opportunity to experience the game.