Earn a Victory in a DG FighterMultiplayer mission.
Play a DG Fighter Multiplayer mission.
Build 100 Temporal towers.
Build 100 Missile towers.
Build 100 Tesla towers.
Kill 50,000 aliens.
Earn a Bronze (or better) medal in a Coordinated Defense Multiplayer mission.
Earn a Gold medal in a Coordinated Defense Multiplayer Mission.
Build 100 Meteor towers.
Using only level 1 towers, Win any Chapter 4 (or later) mission.
Earn a gold medal on every mission in Story mode.
Build 100 Concussion towers.
Survive 100 waves on any Super Grinder challenge mode.
Survive 100 waves on Grinder challenge mode on any mission.
Build 100 Laser towers.
Use the command shuttle to move 6 map sections in Mission 6.
Using only Cannon towers, Win any Chapter 4 (or later) mission.
Using only Gun towers, Win any chapter 4 (or later) mission.
Using only Inferno towers, Win any Chapter 4 (or later) mission.
Sell 10 towers or more in a single mission.
Earn a silver medal (or better) on all missions in the Story mode.
Build 100 Cannon towers.
Build 100 Gun towers.
Finish all the missions in Chapter 1 in Story Mode.
Build 100 Boost towers.
Complete the single player campaign in Story Mode.
Build 100 Inferno towers.
Win a Gold medal on Mission 19 without using the Command Shuttle.
Build every tower and every upgrade for each tower.
Build and fully upgrade each tower type in one mission.
Use the Core Teleport special weapon (Professor Taylor).
Sell 10 towers.
Enable a Tower Augmentation Item on 10 Towers.
Kill 10,000 aliens.
Use the speed up control at 3x for a total of 60 seconds in any mission.
Build 50 towers of any type in one mission.
Beat a Chapter 4 mission or higher with zero cores captured.
Win a chapter 4 (or later) mission with level 3 towers only and no selling.
Use the Precision Targeting Special Weapon (Rear Admiral Phillips).
Use the Temporal Cannon Special Weapon (Colonel Rissler).
Win a mission with at least 10,000 resources remaining.
Build at least 1 of each tower type in any single mission.
Inspect 10 aliens.
Save a core that is less than 10 seconds away from the map's exit point.
Use the reload checkpoint option five times in a single mission.
Use the Tower Overcharge Special Weapon (Advisor Zacara).
Use the Resource Reinforcement Special Weapon (Professor Briel).
Kill an alien boss creature. (Juggernaut, Rumbler, Turtle, or Crasher)
Build 20 towers of any type in one mission.
Win a mission with at least 5,000 resources remaining.
Use the Orbital Laser Special Weapon (General Cai).
Use the Reload Checkpoint option.
Enable a Tower Augmentation item on any tower.
Kill an alien carrying a power core.
Recover a loose core.
Kill 1000 aliens.
Win any mission without selling any towers.
Earn a Bronze (or better) medal in a Single Player Mission.
Win a mission with at least 1,000 resources remaining.
Upgrade a level 1 tower to a level 2 tower.
Earn a Gold Medal.
Kill 1 alien.
Earn a silver (or better) medal.
Kill 100 aliens.
Earn 100 Gold Medals on any missions.
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