Street Fighter 2010: The Final Fight, released in Japan as 2010 Street Fighter (2010 ストリートファイター, Nī Maru Ichi Maru: Sutorīto Faitā) is a side-scrolling action platform game released by Capcom for the Nintendo Entertainment System in 1990. It was marketed as a science fiction-themed spin-off to the 1987 arcade game Street Fighter. The English localization of 2010 changed the name and backstory of the main character to imply that he was Ken from the original Street Fighter, whereas the protagonist in the Japanese version is a completely unrelated character named Kevin. 2010 is of a different genre from the traditional Street Fighter games, which are competitive fighting games.

The player takes control of Ken, a cyborg cop. The objective of each stage is to destroy the designated enemy target shown before the stage begins and obtain the energy required to open a transdimensional portal to the next stage. Some stages require the player to destroy more than one enemy to accumulate the energy needed to open the portal. After the portal is open, Ken only has a limited amount of time to enter it; failure to do so will cause the player to lose a life, forcing the player to restart.

Like most side-scrolling action games, the player uses one button to attack and the other to jump. Ken can also climb walls and poles or pole-like structures, as well as hang onto and climb (or drop down from) certain kinds of ledges. In addition to his regular jump, Ken can also do a backward flip jump by doing a neutral upward jump and then pressing the directional pad on the opposite direction he's facing. Ken's main weapon is an energy projectile which he launches with his fists. Ken can shoot straight at either direction horizontally, as well as upward vertically by holding the d-pad upwards. Ken can launch curved power shots by holding the d-pad left or right and pressing the B button, which have further reach and are more powerful than the regular shots. Ken can also launch his projectiles with his kicks by holding the d-pad downward and pressing B, which will travel upward diagonally. To shoot downwards, Ken must do a flip jump first and then B while still in mid-air.

Ken's projectiles will initially have a short range at the start of the game, but the player can uncover and pick up power-up capsules by destroying item containers scattered throughout each stage. Picking two power-up capsules will increase Ken's shooting level by one, increasing the range of his projectiles and their strength; however, if Ken sustains damage, his power level will decrease by one and if he loses a life, he will revert back to his starting power. Ken can increase his power by up to five levels. Other power-ups includes a back-up option for added firepower and a "flip shield capsule" that will allow the player to damage enemies with their flip jumps.