I can't get into the bonewagon. I used the grinder with the bone arm on the sproutelle. Manny won't go into the dark tunnel because of the beast. I can't enter the bone wagon because manny says "No use for it" please help me.
Use the bone grinder right infront of the tunnel, and then try to use the bone wagon.
Aaaargh! For me it seemed impossible to get the bone grinder out of the snow machine - it just kept grinding that poor agents arm. Then I read this thread and realized that I *never* earlier in the game had had to use the P key to pick anything up - the ENTER key would always do.