It's a famous video game song. I really can't break it down to normal sense (being non-native). Also, I feel it's slightly glitched grammar. Anyway, what does it mean?
1 Answer
It means the speaker is saying they are wasting time talking
Look at me still talking
when there is something else that needs to be done
when there's science to do.
Consider
Look at us complaining we are hungry when we should just find a place to eat.