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