How do I enter cheat codes in DeSmuME?
As of 0.9.4+, there are two types of cheat codes: Action Replay and ‘raw’ or ‘internal’ cheats. The ‘raw’ or ‘internal’ cheats include cheat-finding facilities where you may manually search for and alter the memory positions which work to your advantage. There’s an excellent article on ‘raw’ or ‘internal’ cheats in the wiki on Using Cheats in DeSmuMe . For Action Replay Cheats, You can find codes for the NTSC games at http://us.codejunkies.com/Departments/DS-and-GBA.aspx and for the PAL at http://uk.codejunkies.com/Departments/DS-and-GBA.aspx.