ok, glass is clear, you should be able to shoot the portals thru it, like in level 14..
but you can't and there is completely no frikkn way to beat it.
wow.. i got 97, 500.. and then got jipped when i moved my piece last second.. it didnt register and i lost...and if you woulda added the pts i got that round, i had over 100k.. it really pissed me off
 "Coil"){kind=icon}
 "Portal: The Flash Version"){kind=icon}
 "Rings"){kind=icon}
 "Red"){kind=icon}
 "Anti-TD"){kind=icon}
 "Notessimo"){kind=icon}
 "Pretty Pretty Bang Bang"){kind=icon}