To be honest, other than vague memories of the 'Nigel Mansell's World Championship' and 'Starwing' ones I'm not sure I was aware of these at all.
He wrote and performed them all himself, before using the money to buy a house in London which he named 'Nintendo Towers'. Excellent banter.
There's like eight separate ads altogether, each one a mini-reminder of what we've lost. Take a look...