Is your latest project driving you mad? Are you subject to occasional fits of rage? This project might help: for a class called elecanisms at Olin College, [Forrest] and a team of three other students made a whack-a-mole arcade game that lets you vent your rage on a helpless furry animal by whacking it with a large hammer. He built most of it from scratch, creating his own solenoid driver and LED sensor board. However, there is a twist in here that gives the moles a fighting chance: there is an accelerometer built into the hammer that lets them know that your heavy hammer of doom is approaching.
Will they escape before your righteous wrath descends upon them? That depends on how you decide to set it up, and how merciful you want to be. The build even includes a coin-operated pay-to-play slot. They kept the cost low at a penny, but this is just begging to be installed at the local pub to rake in those quarters.
This course has been the source of a few projects that we have featured before on Hackaday, including the Confectionary Canon, which tracks your face and fires marshmallows right into your gaping maw.
When he bought the table, he found that the electronics had been fried: many of the discrete components on the board had been burnt out. So, rather than replace the individual parts, he gutted the table and replaced the logic board with an Arduino Mega that drives the flippers, display and chimes that make pinball the delightful experience it is. Fortunately, 
