I made this simple game in HyperCard 1.0.1 for a Reddit contest and
I'm very pleased with how it came out! It's a clone of the Lights Out
game where the goal is to turn off all the lights but anywhere you
click also inverts the surrounding lights in a cross pattern. In this
case you have error message icons that you want to clear away. Killing
one can breed more. Be Error Free ![Smile][1]

Download is a bootable 800K disk image

Compatibility

  [1]: http://macintoshgarden.org/sites/all/modules/smileys/packs/Roving/smile.png (Smile)