On this Encounter Ick casts an Explosive Barrage which puts basicly a proximity mine on the floor which will explode in your face, However last night we found that if you pull him behind the enclosed area, he casts the Explosive Barrage but in the central area so that you do not have to run around like a mad man avoiding them!
Also if you are on normal mode or do not want the hilt you can avoid all the trash for that part by pulling from the screenshot shown below!