Lego Dimensions

Lego Dimensions is a LEGO video game featuring characters from many different franchises, including The Simpsons.

Meltdown at Sector 7-G
The Simpsons has a level in the starter pack called "Meltdown at Sector 7-G" where Lord Business from  teams up with The Joker from DC Comics to take over Springfield. No The Simpsons characters are playable in this level without the expansion sets.

The Mysterious Voyage of Homer
The level from The Simpsons Level Pack. The level is based on the Season 8 episode El Viaje Misterioso de Nuestro Jomer.

Simpsons Adventure World
Like all Lego Dimensions themes, The Simpsons have an adventure world. In this adventure world, players can explore their favorite locations in Springfield.

Other levels
During some other levels, Simpsons objects are transported through a portal into the level, either in assistance to the player or as an obstacle:
 * Painting the Town Black: School Bus
 * Once Upon A Time Machine in the West: Kwik-E-Mart
 * GLaD to See You: Homer on a wrecking ball
 * The Final Dimension: Batman eats a donut.

Trivia

 * Dan Castellaneta voices Homer Simpson and Krusty the Clown. All of the audio is from archive footage.
 * While Bart Simpson is playable, he does not speak.
 * Hans Moleman, Mayor Quimby, Grandpa Simpson and Groundskeeper Willie (all voiced by Dan Castellaneta) and the Space Coyote (voiced by Johnny Cash) are the only non-playable characters to have voices in the game.
 * Sonic the Hedgehog has a cutscene with Bart repeating his scene from Marge Be Not Proud.