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