system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How were video games in the late 80s/early 90s animated before huge digital advances were made? Additionally, how was music added?
gpt
they had very little resources to use, so the resources were used sparingly.  Mush was 8bit and limited to the notes they could use.  Graphics were re-used (for example, in Super Mario Brothers on the original NES, the clouds and the bushes were the same graphic, just some were green and some were white.