Here is the full list of all 40 Wasteland Angel achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
50 kills in Frenzy bonus level
25 kills in Frenzy bonus level
Finished the Story mode
Location 6 Finished
All civilians saved in one level
99x multiplier
100 Million score
Location 5 Finished
50 checkpoints collected in Racing bonus level
25 checkpoints collected in Racing bonus level
Mutant boss killed
Finished a level with over 25% accuracy
Location 4 Finished
15 seconds of airtime in one level
Killed 5 enemies with one Nuke
Location 3 Finished
Tank boss killed
Full armor collected
Turned 5 enemies into flames with one Napalm
Location 2 Finished
10 special weapons collected (but not used yet)
Drive over 10 enemy drivers in one level
Recharge to full hitpoints in Recharge Area
Maxed out the weapon level
50x multiplier
20 Kill combo
25 kills in Survival bonus level
50 kills in Survival bonus level
Location 1 Finished
10 Million score
Harvester boss killed
20x multiplier
1 Million score
Killed a civilian
10 Kill combo
100K score
5 Kill combo
Tutorials passed
Killed an enemy driver
2 Kill combo