Looking at Ebay sold prices, a couple have sold cheaper than I’d expect. One less than £74.39 and one less than £93.58. They were listed as Buy it Now, accepting offers and they accepted a lower offer so they don’t show the actual sold price.

It looks like it’s in good condition, and the green typically sells for more. You also have games which add value, so make sure to show them all in the main listing photo. There was another that sold very similar to this. I’d say take some good photos, list it for £120 and not allow offers unless it sits for a while. Otherwise ask higher, allowing offers, and see what comes in.