This was a far-too-cheap-to-miss £13 in Asda today, so it was rude not to buy it. So I bought it.
It’s a great package, actually. There are 40-odd Megadrive games (all with save-states), and then unlockable other games (like the arcade version of Altered Beast). So far I’ve played Alex Kidd (good), Altered Beast (rubbish as always), Flicky (amazing), Comix Zone (fantastic but bloody hard), Ristar (fiddly), and Columns (not as good as the Master System version).