Of course you can what planet are you from
When you finish story mode! ;)
yeti is not in the batcave and is not in arkham asylum,you only can play with him on free play mode.
You have to complete the game (100%), then you can buy him, or enter this code: FBE58T.
No, he cannot run on water in the Open World or in Story/Free Play Mode.
you unlock him in story mode, level 13 i think...
no dumn asses why would there be
You cannot walk there, but you can play levels there if you can continue the story-mode.
You have to finish a certain mission to unlock him
Nothing. Not that I can tell. I had a similar question. After a while of looking online and a bit of experimenting myself, I found nothing. I know that in LEGO Star Wars I-III and LEGO Indiana Jones it let you play as bonus characters in Free-Play mode. I knew for LEGO Batman It had to be different, as I tried multiple levels with empty hands. I was a bit frustrated while looking online, as many people who had never picked the game up but had experience with other LEGO games explained it unlocked bonus characters for Free-Play. It does nothing.
Well, darling, to unlock Joker in Lego Batman, you need to complete the Villain levels in Story Mode. Once you've conquered those bad boys, Joker will be yours to wreak havoc with in Free Play mode. So, get your game face on and show those villains who's boss!
To unlock free mode most you have cheats on R4
Make your best in story mode.