In Splinterz, in the room just before the gluk, when you're shooting all the sligs leave 1 behind. Become Abe and jump on the pressure button and possess the slig. Walk up to the gluk and you can shoot him! He can't die but it's still fun!
Also in Brewery To Be just as you tell the 3 muds to work pick one up and hold onto him. The other 2 will go outside but this one'll stay with you. Put him on the button and walk up to the door with "NO EXIT" written on it. Don't go too far or you'll be sorry! Possess the gluk and walk him to the same door right next too Abe! Depossess him and Abe will be able to hit the gluk! When you get bored it'll be time for the fun part!
Walk back on the button and tell your mudokon friend to attack. He will constantly hit the poor, defencless glukkon.
I hope that wasn't too confusing. Tell me if you don't understand.