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