16t (c) 1991 Sega Enterprises, Ltd.
You play as a computer programmer who goes into his bugged program to debug it by squishing the bugs with 16-ton weights. Levels are a series of platforms that wrap around both horizontally and vertically. A and C jump and B throws a 16-ton weight. You can only throw a certain number of weights at a time; the number is shown at the bottom of the screen. The level ends when you crush all the enemies. Getting crushed or getting hit once causes you to lose a life.
Released in 1991 in Japan for the Sega Meganet online service.
Sega Mega-CD [JP] (mar.18, 1994) "Game no Kanzume Vol. 1 [Model G-6032]"