1) A feeling of pleasure and also slight sadness when you think about things that happened in the past.
2) A ploy used by game studios to make you buy a game with outdated mechanics and graphics.
Rex Rocket is the latest in old fashioned games with a 16-bit art style and dialogue boxes presented in eyesight ruining white text the likes of which we abandoned decades ago. We keep buying into it though because we want to relive those days from our childhoods where games were "better". Rex Rocket is a trip down memory lane, pity it's one we've seen many times before.