After completing the first mission, you will be at Joker's hideout. To the left is a set of teeth that acts as a terminal where codes can be entered. Enter one of the following codes to activate the corresponding cheat function:
| Result | Code |
| Adam Strange | QF7NT |
| Atrocitus | 9RHJJ |
| Black Canary | ND6AL |
| Blue Beetle | 8VV5Q |
| Clock King | Z6AU7 |
| Detective Chimp | BQWSG |
| Dex Starr | KFLQM |
| Doctor Fate | KPTCC |
| Dr. Light | 6NWX5 |
| Doctor Poison | GWWBS |
| Firestorm | HFMHM |
| General Zod | D8577 |
| Green Lantern (John Stewart) | KNJ2P |
| Hawk Girl | LNSB9 |
| Jessica Cruz | S5DB6 |
| Lady Shiva | XQP2L |
| Martian Manhunter | Y7MFR |
| Monseiur Mallah | GM9MX |
| Mr. Mxyzptlk | NURPU |
| Plastic Man | E6HUY |
| Ravager | UVWHS |
| Red Robin | JNLPY |
| Red Tornado | CKDRF |
| Star Sapphire | QD2GY |
| Terra | F79GU |
| The Trickster | YRZMS |
| Toyman | VB5AS |
