First picture, the green capacitor on that switch has been cut off because it's likely faulty/shorted. The game will operate without it, but quick ball hits on that target will sometimes be missed. For your sanity it's a good idea to install a new capacitor and probably a good idea to replace them all on the other switches since they commonly fail.
They are a 0.047uF ceramic disk capacitor.
Second picture, the bunched up red-green and blue wires are for a centre coin chute switch. Ditto that loose blue wire in your hand which should actually be connected to that blue wire in the bunch. Your game doesn't have the centre coin chute fitted, so best to just make sure there's no exposed end wires (tape them up separately or put small heatshrink over the ends). Note the two red-green wires in that bunch need to be connected together because that wire daisy chains to the next coin chute switch.
Third picture, that green wire is solenoid 43 volt power for that small coil which is used for locking out the coin chutes. When that coin lockout coil is off (i.e. the game is powered off or has reached maximum credits), any coins dropped should be rejected. Coins should only be accepted when the game is able to process them.
There is supposed to be some insulation paper between the back of the coil where the two lugs are the metal coin door frame to prevent that green wire from shorting to ground and blowing fuses. If you reconnect that green wire, pay attention to making sure those coil lugs are isolated and have no way of touching the metal frame. If you leave that green wire disconnected, make sure to cover the end with tape.