Enter the stage select screen and highlight the "X" logo. Then, quickly press Down + Square + X. If you entered the code correctly, the cursor will move to the bottom of the screen.
Enter 7357, 7533, 6462, 7835 as a password to start a game with that weapon.
Enter 6414, 4155, 6872, 3356 as a password to start a game with the special capsules (Double Air-Dash, Hyper Charger, Super Armor, I. Tracer) already obtained.
Another way to defeat Byte is to intentionally run into him when he shoots his pod across the screen, right before he dashes. Then he will dash across the screen and leave Megaman with just a small amount of damage.
| Level | Password |
| Introduction | 3721, 1281, 3751, 4456 |
| Gravity Beetle | 5623, 4888, 5851, 4221 |
| Blast Hornet | 1745, 5231, 5441, 2486 |
| Neon Tiger | 3621, 4867, 5851, 2227 |
| Tunnel Rhino | 5728, 1263, 5754, 2458 |
| Blizzard Buffalo | 7671, 2857, 2144, 1247 |
| Volt Catfish | 1778, 5253, 2444, 3488 |
| Crush Crawfish | 5718, 1266, 2727, 7458 |
| Dr. Doppler's Lab | 5718, 1263, 2627, 7458 |
| Infinite Energy | 800D8A44 9600 |
| Infinite Bug Hole | 800D8108 5C00 |
| Infinite Acid Rush | 800D80FE 5C00 |
| Infinite Parasitic Bomb | 800D8100 5C00 |
| Infinite Ray Splasher | 800D8106 5C00 |
| Infinite Triad Thunder | 800D8102 5C00 |
| Infinite Frost Shield | 800D810A 5C00 |
| Infinite Tornado Fang | 800D810C 5C00 |
| Infinite Spinning Blade | 800D8104 5C00 |
