Have you DL the enslaved demo? I thought it was rubbish, felt like a Ratchet and Clank game but with adult graphics to me = dull repetative nonsense (but I suppose the full game could be a bit better)
9yr old has Starwars force unleashed 2 and loves it but it’s very easy and from watching (not played it) IMO seems incredibly repetative. (I’m not a StarWars geek tho)
Have you considered Batman Arkham Asylum? – it’s ultimately a very polished moody beat-em-up adventure but has a half decent story line and does actually have some challenging bits and plenty of variation in game play. in many ways it reminded me of a cross between tombraider/metalgear solid/spiderman – should be pretty cheap now too.
don’t have either of these but uncharted/assasins creed always seems to be recomended so are on my “will eventually get” list.
PS – in Tombraider underworld what are you meant to do under the sea at the start? – 8 yr old daughter has it and has no idea what the hell she’s looking for