Poor ace then.. The whole Bionicle thing is totally soulless.
Like the other franchises that Lego have adopted, Lego Batman looks like a lego version of Batman (well duh). The lego toys have a great comedy look while still retaining the integrity of the comics/movies. The toys are fun to play with* even though they're not based on any specific movie. Same goes for the games I'm sure.
They should do a Spiderman game next.. (there's already some Spiderman Lego sets available) - or maybe even a Superman game.. although Superman is lame and boring compared to the other characters...
*My 6 year old son loves them..