Play Rockman 4 - Aratanaru Yabou!! (japan) Online

Rockman 4 - Aratanaru Yabou!! came out in 1991 for the Nintendo Entertainment System, developed and published by Capcom. It was the fourth main entry in the series on the NES, arriving at a time when the console's library was deep with challenging action games. This one continued the tradition of tight controls and memorable robot master designs.

You control the blue robot hero, Rockman, through a series of side scrolling stages. Your main goal is to stop a new villain, a mysterious figure named Cossack, by defeating his eight robot masters and then storming his fortress. The core loop involves choosing stages in any order, fighting through screen by screen platforming challenges, and absorbing the special weapon of each defeated boss. You jump between narrow ledges, slide under obstacles, and fire your arm cannon at a variety of mechanical enemies. The game introduced the Mega Buster, a charged shot that adds a layer of strategy to combat. Stages are often lengthy and demand precise timing, with sudden environmental hazards and tricky enemy placements that test your reflexes. Navigating these levels requires careful observation and quick reactions, making each completed stage a genuine accomplishment.