Program Advance

A Program Advance (プログラムアドバンス), PA for short, is an incident in the Mega Man Battle Network series when certain Battle Chips are used in succession to form a very powerful to enormously powerful offense or defense. One of the most known examples would be the Life Sword PA, which uses the Chips Sword, Wide Sword, and Long Sword, in that order.

In Mega Man Battle Network 5 onwards, Program Advances were limited to once per battle, so players couldn't reuse it. In the anime Mega Man NT Warrior, PA's are triggered the same way, but they are harder to use, may self-destruct, and can be used in Cross Fusions.

In Mega Man Star Force 3, Galaxy Advance (GA) cards work similar to PAs, but are much easier to form as the necessary cards need not all be selectable. All PA's require 3, 4, or 5 chips, while GAs only need 3 cards. Galaxy Advance cards may also be found in Finalize folders or as very rare Illegal data.

Mega Man Battle Network
Program Advances from Mega Man Battle Network. Numbering is not official.

Rockman.EXE Operate Shooting Star
Rockman.EXE Operate Shooting Star is a Japan-only re-release of the original game with some changes, including two exclusive Program Advances. Numbering is not official.

Mega Man Network Transmission
When a Program Advance is done in this game, only one of each involved chip is used. The Program Advance can be re-created at any time if there is at least one of all chips involved available.

Mega Man Battle Network 2
Program Advances in Mega Man Battle Network 2.

Mega Man Battle Network 3
Program Advances in Mega Man Battle Network 3.

Mega Man Battle Network 4
Program Advances in Mega Man Battle Network 4.

Mega Man Battle Network 5
Program Advances in Mega Man Battle Network 5.

Mega Man Battle Network 6
Program Advances in Mega Man Battle Network 6.

Phantom of Network / Legend of Network
Program Advances introduced in Rockman.EXE Phantom of Network and Rockman.EXE Legend of Network.

Trivia

 * Hyper Burst and Mega-Burst also appeared in MegaMan NT Warrior, first used against PlanetMan.EXE in Episode 45.