I played SQ2 till the point in the station with the trap door. Use the saved game, go south to the next room. Go right until the wall appears, go left until the wall appears. Type "stick plunber to wall" but wait with pressing enter until the trapdoor is near you otherwise you can't hold the plunber so long and fall into the acid. The problem is, after hanging on the wall and the trap door closes the walls won't disappear as written in the solution in wich i looked becaus i thought there might be a solution but now i am sure this is a technical problem. I startet playing under a fresh installation of scummvm 0.11.0 and now updated to 0.11.1 to see if this helps but no luck. The game's version is 2.0f english from the spacequest collection. My OS is Windows98SE SP2.
Ticket imported from: #1905928. Ticket imported from: bugs/3642.