Gameplay
Fighters are controlled by mouse movements, mouse buttons and the scroll wheel. Characters in the game were apparently action-figure versions of the actual characters, using Revoltech's action-figure 3D engine. As such, fighter's body parts could be switched and customized. The character models were designed to look like the action-figure of the characters, with blocky limbs and visible joint screws. While this engine allowed for "maximum flexibility", it made the character models "revolting".
The game was free to play. Daletto's revenue came from micro-transactions, through a store, and through in-game Gashapon dispensers (licensed from Bandai). Players were able to purchase extra body parts and outfits, to further customize their characters. Some purchasable items were fairly abstract, such as squid-shaped hats, as a cross-promotion with pre-existing squid-shaped USB thumb drives.
Read more about this topic: Street Fighter Online: Mouse Generation