OK, so I thought... big deal! Megaman flash game, Ive seen it before. I was wrong.
1. Metroid. Nuff said.
2. Ghosts and Goblins. Again. Nuff said.
3. Good controlls.
4. The ability to take the A. Lance/S. Missile to the other game.
5. Protoman/Blues
Megaman vs Ghosts&Goblins
Megaman vs Metroid