When MegaMan.EXE encounters viruses, the screen shifts to a battle screen set on a six by three square grid. On the left half of the grid is MegaMan.EXE, and on the other half are his opponents. MegaMan.EXE has a relatively weak arm cannon, the Mega Buster, but his main weapon is Lan's library of battle chips, one-use-per-battle special attacks which grant various abilities, including simple attacks, attack enhancements, defensive effects, terrain transmogrification, or assistance from other NetNavis. Before battle, the player can construct a folder consisted of thirty battle chips, and each turn of a battle (measured by a timer bar at the top of the screen), the player is presented with a random selection of these chips. The player can send MegaMan.EXE m up to five battle chips, after which the battle takes place in real time, with MegaMan.EXE, controlled by the player, attacking with his Mega Buster, dodging attacks, or activating battle chips from his queue.