I loved the sound when the lawn mower explodes. The shabby graphics made it even funnier.
I think it was there around 1992.
Other games I remember:
Spacestation Pheta (Lode-Runner like game. Wow, still available.)
StuntCopter+ (a game of dropping people off a helicopter, so they survive)
Zero Gravity (nice background music)
Color Mac (makes a color illusion on the screen of a B&W Mac)