Just like the first game had a remake, then Mega Man 2 should also have one.
Things I'd like:
All gameplay elements from Mega Man 2
Playable characters:
Starter: Mega Man, Cut Man, Guts Man, Ice Man, Bomb Man, Fire Man, Elec Man, Time Man, Oil Man
Unlockable: Metal Man, Air Man, Bubble Man, Quick Man, Crash Man, Flash Man, Heat Man, Wood Man (defeat them with your default weapon to unlock them)
Mega (clear game on Hard)
DLC: Roll, Proto Man
Bosses:
All bosses from Mega Man 2
Fake versions of Mega Man and the Robot Masters from Powered Up 1 (give their weapon when defeated, for example Mega Man? gives you the Mega Buster)(appear on a defeated Robot Master's stage)
Copy Robot (appears on a defeated Robot Master's stage after Mega Man? and the fake Robot Masters are defeated)
Level editor
Challenges
Boss Rush
Unique gameplay elements for the Robot Masters of Mega Man 2
Difficulty select
Ultimate Levels (DLC)
Robot Masters, Roll, and Proto Man can acquire other Robot Masters' weapons (because of Boobeam Trap and Alien)
S upgrade for everyone (enables slide, unlocked by clearing game on Easy)
Unlockable Charge shots for everyone (unlocked by clearing game on Normal)
Release on 3DS and Vita
Things I'd like:
All gameplay elements from Mega Man 2
Playable characters:
Starter: Mega Man, Cut Man, Guts Man, Ice Man, Bomb Man, Fire Man, Elec Man, Time Man, Oil Man
Unlockable: Metal Man, Air Man, Bubble Man, Quick Man, Crash Man, Flash Man, Heat Man, Wood Man (defeat them with your default weapon to unlock them)
Mega (clear game on Hard)
DLC: Roll, Proto Man
Bosses:
All bosses from Mega Man 2
Fake versions of Mega Man and the Robot Masters from Powered Up 1 (give their weapon when defeated, for example Mega Man? gives you the Mega Buster)(appear on a defeated Robot Master's stage)
Copy Robot (appears on a defeated Robot Master's stage after Mega Man? and the fake Robot Masters are defeated)
Level editor
Challenges
Boss Rush
Unique gameplay elements for the Robot Masters of Mega Man 2
Difficulty select
Ultimate Levels (DLC)
Robot Masters, Roll, and Proto Man can acquire other Robot Masters' weapons (because of Boobeam Trap and Alien)
S upgrade for everyone (enables slide, unlocked by clearing game on Easy)
Unlockable Charge shots for everyone (unlocked by clearing game on Normal)
Release on 3DS and Vita