- Activate Cheats
While you are playing this game, click and keep pushed the Right Analog-stick, then enter one of the following codes on the D-pad to obtain the corresponding effect. Repeat a code to disable its effect. Notice: Enabling codes will disable the ability to earn medals and achievements. Also, enabling the '100,000 resources' code will record you as finishing with one core and getting a score of 2,000.
| Code | | Effect |
| Aliens cannot grab cores | Up, Left, Down, Right |
| Free camera mode [Note] | Down, Up, Down(2) |
| Unknown | Up, Right, Down, Left |
| Level select | Up(2), Down(2), Left, Right, Left, Right |
| Auto defeat | Down(4) |
| All tower types | Up, Down, Left, Right |
| Cores cannot be taken | Up, Left, Down, Right |
| Auto victory | Up(4) |
| Kill all aliens | Left, Right, Left, Right |
| All towers and upgrades | Left, Up, Down, Right |
| Kill all aliens carrying cores | Up, Down, Down, Up |
| 100,000 resources | Right(4) |
| Toggle target reticule | Down, Up, Down, Up |
| Unknown | Left(2), Right(2) | - Achievements
Do the following things to obtain the corresponding Gamerscore points:
| 5 Points | | Salvage Rights | Destroy at least one boss alien. | | | 10 Points | | Death From Above | Fire the orbital laser. | | | Tower Expert | Build at least one of every tower type and available upgrade. | | | Field Promotion | Gain at least one silver medal in any mission after The Awakening. | | | 15 Points | | Nail Biter | Be victorious in a mission with the last remaining core less than 10 seconds away from the map exit. | | | Flawless Victory | Gain at least one gold medal in any mission after The Awakening. | | | 20 Points | | Exterminator | Destroy 1000 aliens. | | | Alien Tears | Gain at least a gold medal on all Story mode missions in The Awakening campaign. | | | Base Defender | Finish the Story mode in The Awakening campaign. | | | Planet Defender | Gain at least a silver medal on all Story mode missions in The Awakening campaign. | | | 25 Points | | Siege Breaker | Survive all 99 waves on any Grinder challenge mode. | | | 30 Points | | Master Strategist | Gain a gold medal on at least 40 Story or Challenge mode missions in any campaign. | | | | | | | | | | | | | |
| 10 Points | | Combat Turmoil | Gain a gold medal on the Campaign mode of Service Interruption and Height of Confusion. | | |
| 10 Points | | Circular Hazard | Gain a gold medal on the Campaign mode of Risk Exposure and Roundabout. | | |
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