Here is the full list of all 14 Hummingz - there are Retro Arcade action revised achievements.
Defeat Boss One
Defeat Boss Two
Defeat Boss Three
Defeat the Boss Combo.
Dont lose a life until Boss One is defeated.
Dont lose a life until Boss Two is defeated.
Dont lose a life until Boss Three is defeated.
Catch five snail in a row ( without missing one ).
Catch ten snail in a row ( without missing one ).
Kill five falling spiders in a row ( without missing one ).
Kill ten falling spiders in a row ( without missing one ).
Wipe out all mushrooms from the screen.
Play a perfect Bonus Round.
Reach the maximum firepower.