Video games/M

Ma

 * Marvel's Avengers (2020 video game): Kamala Khan is one of the playable characters, she has the ability to stretch and alter the size of some parts of her body (semi-giantess), and her so called "Ultimate Heroic Ability" is to become (for almost 1 minute) into a giantess (mostly like an imperfect giantess). Ant-Man isn't inside this game, at the moment.

Mi

 * Mister Mosquito: A game where you control a mosquito and your main objective is to suck the blood of what for you would be a giantess (actually there are para-giantesses).
 * Mister Mosquito 2: Let's Go Hawaii: Mister Mosquito's sequel. There are not many differences with the original game and its objective is the same.

Mo

 * Momodora: Reverie Under the Moonlight: Lubella.
 * Mortal Shell:

My

 * My Hero Academia One's Justice 2: Camie’s ultimate move makes her appear giant, but is a mirage.