Emulators on Titan (NES, SNES, etc....)

[martypng]

From what I've been reading, you can't have more than one button on the keyboard register at a time. (With the exception of FN, and SHIFT). Is this true? I'm looking to run some emulators like PocketNester, but these don't seem to work as you can only hit one button at a time. Am I missing something? Thanks!