public driver_block()
 {
     drv = new machine_driver_pang();
     year = "1991";
     name = "block";
     description = "Block Block (World)";
     manufacturer = "Capcom";
     flags = Mame.ROT270;
     input_ports = input_ports_block();
     rom = rom_block();
     drv.HasNVRAMhandler = true;
 }
 public driver_blockbl()
 {
     drv = new machine_driver_pang();
     year = "1990";
     name = "blockbl";
     description = "Block lLock (bootleg)";
     manufacturer = "bootleg";
     flags = Mame.ROT270;
     input_ports = driver_block.input_ports_block();
     rom = rom_blockbl();
     drv.HasNVRAMhandler = true;
 }
 public driver_spang()
 {
     drv = new machine_driver_pang();
     year = "1990";
     name = "spang";
     description = "Super Pang (World)";
     manufacturer = "Mitchel";
     flags = Mame.ROT0;
     input_ports = input_ports_pang();
     rom = rom_spang();
     drv.HasNVRAMhandler = true;
 }