The Game Genie is incompatible with certain games, such as Star Fox[8] and Super Mario RPG: Legend of the Seven Stars,[9] because those games use the extra pins that most other Super NES games never utilize, as there is no circuitry to accommodate these pins of the games' PCBs. It also has problems with the SNS-101 remodel SNES. When used with a SNS-101, only two codes can be used at a time, and they must be entered on the top and bottom lines of the Game Genie menu. There are three known versions of the SNES Game Genie (v1, v1.1, v2).[10] Images of v1 and v2 PCB have been posted and the difference is night and day, with v2 containing much fewer components on the PCB.[11] All three versions look exactly the same from the outside but when v1.1 is booted up, it will have dashes present before any code is entered. The only way to tell v1 and v2 apart is by opening the case and checking the PCB.