The player must initially engage characters in conversations and explore areas to find a way to infiltrate a vault.
Afterwards, the player must fight waves of enemies and defeat a boss.
The game features a variety of quests that the player must complete in order to progress.
These quests usually involve the player interacting with characters and fighting enemies in combat missions.
After joining Shepard's squad, Kasumi can be used throughout the entire rest of the game like any other of the game's default squad members.
In «Stolen Memory», Shepard is sent to recruit Kasumi Goto, a master thief located on the Citadel, a colossal space station that serves as the capital of the galactic community.
It was the first major Mass Effect 2 downloadable content pack that does not require the game's Cerberus Network, an online downloadable content and news service that enables free bonus content for the main game.
The pack received generally mixed reviews from critics, with an aggregate score of 71 out of 100 for the Xbox 360 version at Metacritic.
Upon completing a quest, the player is awarded with experience points.
If a sufficient amount of experience is obtained, the player can develop powers for both Shepard and the members of the squad.