If you are looking for a unique retro-style experience, a free "16-bit demake" of Mega Man X8 was recently released for PC by fan creator AlyssonDaPaz, reimagining the game with SNES-style graphics.
While you can't download MegaMan X8 as a standalone "free" PC link through official channels anymore, its legacy remains a massive high point for the series. Originally released in 2004, X8 was the "redemption" title that fixed the clunky transition to 3D seen in X7 , returning the gameplay to its fast-paced, 2.5D side-scrolling roots. game megaman x8 pc download link
You can switch between X, Zero, and Axl on the fly. Even better, if one character "dies," you can rescue them with a second player (local co-op) or the AI. Each character has unique abilities: If you are looking for a unique retro-style