Marvel Super Hero Squad Online was a massively multiplayer free-to-play online game for younger audiences based on the Marvel Super Hero Squad, developed by American video game companies the Amazing Society and Gazillion Entertainment.

[3] It was a freemium in-browser game that offered two types of microtransactions: To purchase in-game currency, or a monthly subscription that gave the player additional perks.

As they played, the heroes increased not only their power in combat, but unlocked animated emotes[4] for use in the social game world zones.

The game made it an incentive to become a Junior SHIELD member, which was a monthly micropayment subscription that gave the player additional rewards.

[11] Other critics praised the presentation and voice acting, but noted that it lacked appeal outside of young children who were fans of the show.