Here is the full list of all 28 Hey ma i'm a Dragon Now achievements.
beat the first level
beat level two
beat level three
beat level four
go to how to play for shortcut
beat level five
beat level six
beat level seven
beat the first half of level eight
beat the final half of level eight
go to extras and pick boss rush
press F3 and win mini game
go to how to play to figure it out
click the narrator button in credits
Collect All Achievements
click any key in start screen
lose the F3 mini game 4 times
"Beat Bonus Level 1
Beat Bonus Level 2
Beat Bonus Level 3
Beat Bonus Level 4
Beat Bonus Level 5
Beat Bonus Level 6
Beat Bonus Level 7
Beat Bonus Level 8
Beat Bonus Level 9
Win Bonus Level 10
go to extras and pick Bonus boss rush