|Mega Man 1 artwork of a Killer Bullet|
Killer Bullets will fly across the screen in a wave pattern. They explode when shot by the player, however they can be frozen with the Ice Slasher. In the Level Builder, they can be set as red, orange or blue and to fly to the left or to the right.
Killer Bullets spawned by a Killer Bullet Spawner will attempt to fly in the same level of height as the player is in when it is spawned. For example, if Mega Man is below the spawner once it spawns a Killer Bullet, the enemy will fly down to the same level of height as him.
A Killer Bullet Spawner will only spawn one Killer Bullet at a time. In other words, it will only spawn Killer Bullets if the previous spawned bullet has left the screen.
- If the player runs past a Killer Bullet Spawner set to go to the same direction as they are currently running in, it will only start spawning once Mega Man has ran through it.
- Killer Bullet Spawners are invisible and non-solid.
- Unlike their original appearance in Mega Man 1, Killer Bullets do not explode on contact.
- This isn't true for the Oil Slider, however, as it damages almost anything on touch.