🚀 Why Space Invaders Changed Gaming Forever:

• 🎯 Progressive Difficulty: Aliens speed up as you destroy them (this was actually a programming accident!)
• 🏆 High Score Culture: First game to save high scores, creating competition
• 🕹️ Arcade Boom: So popular it caused a coin shortage in Japan!
• 📈 Gaming Industry: Proved video games could be a massive business
• 🎵 Sound Design: The four-note heartbeat sound created tension

Fun Fact: The aliens speed up because the computer had fewer objects to track as you destroyed them. This "bug" became one of gaming's most famous features!