As in the original Cooking Mama, players in Cooking Mama 2: Dinner with Friends, prepare various culinary dishes using the Nintendo DS's touch screen. Following the on-screen instructions of the titular "Mama", the player uses the stylus to perform various activities such as chopping vegetables or mixing ingredients. Each of these tasks is performed by completing a short minigame, with a number of minigames strung together to form an entire dish from a catalog of 80 different recipes.
After completing a dish, the player's cooking performance is evaluated and given a numerical score (out of 100) along with a corresponding medal. Unlike in previous Cooking Mama titles, bonuses earned during minigames do not influence the overall score, but instead accumulate as "bonus stars". For every 5 such bonuses which are earned, the player earns an unlockable item upon completion of the recipe.
It also contains No$GBA 2.6a the current best DS emulator for PC along with several related utilities. No$GBA can run the included games and many others at close to full speed and they are completable with it