Quantity   Component name
20 × 1k ohm resistor 1/4 w (1/8w will work) pullup resistors, need 10 for 1P version
4 × 27k ohm resistor 1/4w (1/8w will work for auto fire timing, need 2 for 1P version
4 × 0.1uF ceramic capacitor decoupling, need 2 for 1P version
4 × 1uF ceramic capacitor for auto fire timing, need 2 for 1P version
2 × 4021N integrated circuit encoding controller for Nintendo console, need only 1 for 1P version
2 × 74HCT02 integrated circuit rapid fire chip, need only 1 for 1P version
2 × Male 15 pin D-SUB, PCB mount need only 1 for 1P version