My game is going to have a lot of reliance on music so I want to know if it's allowed to use audio that is era-specific (e.g. Chiptune, 8-Bit) but certainly is more advanced in terms of audio than something like a Game & Watch game. Are we allowed to do this or does the audio have to be more like the example below.
The kind of game most people think of when you say LCD game.
And what about LCD games that play a pre-recorded file instead of synthesizing audio? Like the one below.
An example of more advanced audio on an LCD Game (starting from the 2 minute mark).
How far are we allowed to push the words "chiptune like"?