RockMan 4: Aratanaru Yabou!!

Rockman Complete Works is a lineup of video game remakes released only in Japan for the PlayStation in 1999. Rockman Complete Works contains the first six entries in the Classic Mega Man series, originally released on the Nintendo Entertainment System.

The six games were released individually, each disc containing a port of the original Nintendo Entertainment System version as the game's "Original Mode", as well as a "Navi Mode"; "Navi Mode" features a hint system in the form of a supporting character giving tips to the player, an updated HUD, an arranged soundtrack, and other optional game modes.

The games are compatible with the PocketStation, which allows players to download PokeRoku onto the device for exclusive mini games that can boost the health and attack power of Mega Man and the Robot Masters in Navi Mode. High level Blue Bombers can have screen-filling energy bars and buster shots wrecking tough enemies that normally would need multiple hits, while at the same time beefed-up Roboy Masters can have the same properties given to them. Now Metal Man can take up to ten Metal Blades before dying while his can kill Mega Man in in two hits. It’s even possible to make boosted robots fight with another player’s PocketStation to see who’s the strongest.