Level Strategies[]
Mercurian Fortress: Mercury[]
This is a factory themed stage.
Neptunian Seabase: Neptune[]
Martian War Stockpile: Mars[]
Venusian Tunnel System: Venus[]
Midpoint Battle: Dark Moon[]
This stage is short. Just walk forward until Terra appears and fight against the boss: Dark Moon.
Jovian Storm: Jupiter[]
Description of stage: This is a Supermassive space station used to control Jupiter's weather. The Stardroids want to control the station.
Saturnian Gravity Warp: Saturn[]
Description of stage: This is A Ruins Themed Secret Laboratory Located inside Saturn's Rings. Containing Brick Walls, This stage Controls low gravity and high gravity
Plutonian Cavern: Pluto[]
Uranian Ruins: Uranus[]
Description of stage: This is A Temple lives outside in outer Space Located in the Asteroid of Uranus' Rings
Confrontation with Terra[]
The Wily Star[]
Stage 1: Outer Space[]
This stage is unique as it is basically a shoot-em-up.
Stage 2: Old Foes Rematch/Teleporters/Cyberspace[]
In this long stage, the player will fight against four bosses from the previous games: Enker, Quint, Punk and Ballade. After passing by them, there is a rematch against the Stardroids:
Venus Uranus Jupiter Mercury Mars Saturn Neptune Pluto
Final Stage: Wily's Machines and Sunstar[]
This is the final stage. Collect all the items here, then drop down the long shaft. You'll meet up with Proto Man one last time. Collect his item, then enter the teleporter to face the boss: L. Knuckle and R. Knuckle. First you fight the left knuckle. Avoid it as it moves around while charging up the Mega Arm. When it punches the ground, release the Mega Arm at its eyes. Do this 7 times. Now it's time for the other knuckle. This one is faster, and it can both grab and fire missiles. Do the same thing you did to the first arm.
Now you face Dr. Wily in the Brain Crusher. This machine is unmoving, so you don't have to worry about bumping into it. Shot the Alabell bombs back to it to cause damage. After defeating the first form, the ceiling will become smaller and Wily will be visible. Shot where Wily to defeat him. After this, Wily activates the final boss: Sunstar.