Here is the full list of all 22 Rogue'n Roll achievements.
Achieve level 100
You should consider spending them
We all know who is the real monster here
You kill a lot of things
Make your way through the hell
Achieve level 50
Unlock 20 weapons
Have 1000 golds in your wallet
Achieve level 25
Unlock 20 powerups
Get over 500 kills in a single game
Make your way through the cave
Achieve level 10
Unlock 10 weapons
Unlock 10 powerups
Make your way through the city
Have 200 golds in your wallet
Level up for the first time
Get over 200 kills in a single game
Make your way through the forest
Get over 50 kills in a single game
Roll random rewards for the first time