Here is the full list of all 23 Walhall achievements.
You're the real champion!
Thank you for playing!
As if it wasn't hard enough
REAL blue hedgehog!
It gets spiky
Deceiving death itself
Like a blue hedgehog!
Button 2 is more useful now
One after the other!
Babies make you tougher
You're gonna love 'em
Gotta shoot fast
Copying enemy movements
A new challenger appears!
He lost his drill for...
You're feeling tough
At last you can watch it
Take me seriously!
I'm gonna catch you!
He also wants to hit
Helps hitting your target
Your actions are under control
Speed up!