If you play Galaga for 27 hours you may set a world record, but you'll surely suffer from:
"Galaga-lag"
Your turn.

edit: Wait!
...from the Xenocide Files:
"A useful addition (and very unusual for a homecomputer game of that time) is the console-style options menu that allows you to listen to all those excellent Hülsbeck tracks and to configure the game to suit your needs. The best option is to set the controls to 'Sega'. This allows you to plug a controller from your Master System or Mega Drive into your Amiga. Now you can use the second button for activating powerups, so you don't have to move your hand away from your stick in order to reach for the spacebar anymore. This is a great idea more Amiga games should have adopted." -Malc
"Ay, dip an Apidya!"