I wasn't really comparing Turrican to POP.....more Brian the Lion to Prince of Persia. Sorry if I didn't make it clear.
Even though all the games are different you can recognise what makes a good game. It is not about graphics, something that Psygnosis didn't realise. Turrican & Prince of Persia are classic games in their category, not because of the graphics but because they did everything correct....