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