A little too fast for me.It took an hour to get the hard badge, perhaps you could change the speed with the difficulty (easy:80% speed-normal:90% speed-hard:100% speed).3/5
For last achievment,max everything.Then,start flying and wait till you speed is 130-140,keep your penguin straight and slowly tap your rocket button(space),range should be 140-150,keep doing that and you should reach 6000 ft.Max everything and it should be much easier.
Loki is very difficult cuz it keeps jumping around and shoting his rapid attack that is quite impossible to miss,but once u kill him u get exca weapons which are really cool and strong.5/5
 "The Visitor: Massacre at Camp Happy"){kind=icon}
 "Santa Rockstar: Metal Xmas 3"){kind=icon}
 "4 Differences"){kind=icon}
 "Super Crazy Guitar Maniac Deluxe 2"){kind=icon}
 "Pel"){kind=icon}
 "Alice is Dead - Ep 1"){kind=icon}
 "Battalion: Arena"){kind=icon}
 "Crush the Castle Players Pack"){kind=icon}
 "Learn to Fly"){kind=icon}
 "Cube Colossus"){kind=icon}
 "Hedgehog Launch 2"){kind=icon}
 "Epic Battle Fantasy 2"){kind=icon}
 "ButtonHunt 2"){kind=icon}
 "The Several Journeys of Reemus: Chapter 3"){kind=icon}
 "Amorphous+"){kind=icon}
 "Epic War 3"){kind=icon}
 "Super Stacker 2"){kind=icon}
 "Mushroom Revolution"){kind=icon}
 "Run"){kind=icon}