Mega Man 2 is a platforming game for the Nintendo Entertainment System.

Following the gameplay of the first Mega Man game, Mega Man 2 has new features, like Robot Master stages increased from 6 to 8, E-cans that replenishes health to 100%, and support items/platforms 1, 2, and 3.

After his defeat, Dr. Wily created his own Robot Masters and continued his desires for world domination. Mega Man is the only one who can stop the evil scientist once again. But before he could reach him, he needs to defeat Dr. Wily's Robot Masters and obtain new powers from them.

This is a small set of quality-of-life fixes for Mega Man 2, incorporating some of the gameplay improvements found in later entries in the series.

This hack makes the following changes to the game:

[list]
[li]Attempting to use an E-Tank when your health is full does not deplete your E-Tanks.[/li]
[li]E-Tanks are preserved on game over.[/li]
[li]When you have no weapon selected (or your current weapon has full energy), any energy pickups you collect will automatically be spent on your lowest weapon. (One of the Atomic Fire charging sounds is used to indicate that a weapon has been fully charged, similar to some of the later Mega Man games.)[/li]
[li]1.1: Redesigned the E-Tank display on the pause screen to match the lives display, and increased the E-Tank limit from 4 to 99.[/li]
[li]1.1: Collecting an E-Tank while you already have the max amount will no longer cause the collect sound to play.[/li]
[li]1.1: Fixed an issue with the original game causing lives to be capped at 98 instead of 99.[/li]
[li]1.1: Increased the ceiling height on a screen in Wily 4 where it was too low to dodge a Sniper Joe's attacks.[/li]
[li]1.1: Fixed an issue with Quick Man's behavior that caused him to get stuck in walls, making his movements more unpredictable than intended.[/li]
[li]1.1: Increased the text scroll speed on the "get equipped" screen.[/li]
[li]1.2: Updated password generator to cap E-Tanks at 4, due to issues with 4 E-Tanks.[/li]
[li]1.2: Sped up more UI elements (Mega Man flashing when receiving upgrades, screen flashing before Dr. Light's messages).[/li]
[li]1.2: Added separate patches per feature, more documentation.[/li]
[/list]

Update 1.1 (2020/10/30):Fixed an issue with the E-tanks, added various additional improvements to E-tank usage and a couple new fixes.

Update 1.2 (2021/10/15):Added documentation, split fixes into separate patches, fixed password, other minor updates.

Database match: Mega Man 2 (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: 2290D8D839A303219E9327EA1451C5EEA430F53D
File CRC32: 5E268761
ROM SHA-1: 2EC08F9341003DED125458DF8697CA5EF09D2209
ROM CRC32: FCFC04D