Super Mario World (1991)

S1E6 King Scoopa Koopa

King Koopa launches a fast food venture, and his Egg Scoopa Koopa sandwiches quickly become a sensation in Dome City, winning over everyone except the Princess. Unbeknownst to the diners, Koopa has added a sinister twist to his meals, transforming anyone who indulges into Chickadactyls. With everyone else under his spell, only Mario and the Princess remain unaffected. Now, it's their responsibility to put an end to Koopa's scheme before it's too late.