Both the LTs couldnt push the Obelisk. Thats a glitch.. ):
The new download fixes that. You can still only push it from the left though.
Going to upload a new version later which lets you push it from either side (Innovation!) and also fixes that crappy switch puzzle. And makes the Bees a bit stronger. And changes the title music. (I usually leave sound off so i didnt even hear it..)