Summary: My 6 year old son bought this game and loves it (as does his 8 year old brother). They were disappointed though that you can not do download play with this game unless both parties own the game. I did not see this detailed anywhere in the description so thought it should be pointed out.
Summary: My 5 year old has played it the most and he's having a hard time passing the first level as well as saving. My 7 year old has a little bit easier time playing it but it's kinda hard for her too. If you had to pick a game I'd go with Mario or Yoshi instead of these for DS.
Summary: I've played all of the Lego games of the DS, Lego Star Wars the complete saga being my favourite. I really enjoy them despite being in my (slightly late) 20s as I find them entertaining and easy enough to play that I can chill out with them in the evening and not get annoyed that I am stuck on one level and can't get past it. Instead I can move on to another area and come back if I am finding something a bit tricky.
Summary: Lego Batman cost us only £10 in store from either Asda or Tesco, and Amazon are selling it for £12 at present. That's not a bad price for a DS game these days. We got it as a game we could play with the grandson, as he likes Lego (a lot) but is a bit young to manage a game like this without assistance. I'd say its age recommendation of seven years plus is accurate for both content and ability level.