As a free game, it's an excellent one at that. Capcom did a great job releasing this to celebrate Mega Man's 25th anniversary. The stages are extremely challenging like the originals and have interesting designs, but the bosses are somewhat easier. However, this is easily forgiven as they are all Street Fighter characters, and the abilities you unlock are their special moves such as Ryu's Hadoken. As mentioned in the above review, the UI's is not very user friendly, but these are all just minor complaints. It's a great free game, and you should quit reading this review and go download it now!