In addition to the primary mission, Rockman DASH Adventure to Save the Planet also features an arcade mode, placing MegaMan in the center of a room with portals leading to mini-games. These actually add up to a lot more gameplay than the main mode.

This mini-game, classified as "PUSH" by its folder name within the game's directory, is a Sokoban style game involving the moving of blocks onto specific areas. There are over 20 levels and the puzzles get increasingly difficult the farther one goes.

This mini-game, classified as "PCMAN" by its folder name within the game's directory, is the closest the game gets to a Legends experience. MegaMan must navigate ruin-like hallways, careful to avoid reaverbots (he has no buster) and other traps and hazards while collecting crystals that vaguely resemble refractors.

The first level resembles a ruin. Horokko reaverbots move through the narrow corridors, following preset paths that can be easily avoided with careful movement and timing. There is also a section of wall that moves and will literally flatten you should you get caught by it. The end of the level is signified by a cylinder that lowers from the ceiling and allows MegaMan to step inside.

The second level is more like a Bonne base, in space. Numerous Feldeopordo patrol the place, inside the structure and outside where meteorites float past. There are also rooms of lava with moving platforms.

The third and final level seems to take place in the space station. MegaMan must cautiously make his way along narrow pathways both in and outside of the station, careful not to fall prey to moving floors, walls, and slippery elevators. In the end, MegaMan can hop on a hover board and rocket through the remainder of the place, first horizontally and then vertically downward avoiding unfriendly architecture as he goes.

This mini-game, classified as "AUTO" by its folder name within the game's directory, is fashioned after ChuChu Rocket and puts MegaMan aboard a jet ski/rocket vehicle of some kind that he rides around the puzzle grid, attempting to reach the goal according to the player's placement of various elements.

This mini-game, classified as "OCCUPY" by its folder name within the game's directory, is a Dots and Boxes style game that has MegaMan matching wits against a Servbot. Lines are placed, squares are filled, difficulty is minimal. Also includes 2 player mode.

This mini-game, classified as "CAVE" by its folder name within the game's directory, is a rail shooter style game where MegaMan rides through a major city on a predetermined path, firing his buster and moving from side to side to avoid enemies while grabbing up useful items.