Endless Attacks are stages found as Challenges in Mega Man 9 and Mega Man 10. Players must find the blue teleporter, starting at the red teleporter. It goes on and on until Mega Man dies. All Special Weapons and Rush adapters (Coil and Jet) are available. Both Endless Attacks have boss sections. Some parts are based on a part of an earlier stage in the series. For example, a replica of parts of Wily Stage 1 (Mega Man) and Heat Man's stage (Mega Man 2) are found in Mega Man 9, and one part of Wily Stage 1 (Mega Man 5) can be found in Mega Man 10.

Mega Man 9

These have Mega Man 9-themed terrain. They feature enemies from Mega Man 9. Every weapon (BHB, JS, PB, TB, MB, HC, LT, and CS) are all available to use, unless you run out of weapon energy for them. Also, there are gimmicks like Concrete Shot lasers.

Mega Man 10

Like Mega Man 9, these have Mega Man 10-terrain. These feature enemies from Mega Man 10. Once again, each weapon (TW, WS, SB, CS, WC, CB, TB, and RS) are also available to use. More gimmicks are here, such as conveyor belts, iced floors, and quicksand.