This comes from the guy himself Eric Nofsinger, Chief Creative Officer at High Voltage Software…

– The official release date is set for June 9th
– there is no lan multiplayer. High Voltage had it working, but Nintendo wouldn’t allow it
– no split-screen multiplayer, but it was heavily hinted that this is possible if a sequel comes around
– Animales de la Muerte is too big for WiiWare, so it will be release via retail disc instead

Edit note: We talked to Eric about a sequel and he told us that only way he said it would be possible, is if people bought the first one.