Hi there,
I was playing this German MM clone (called Manick Mansion, also the entire game is in German and it has a very different house than MM does, even if the mad scientist premiss is the same).
Anyway how do I get past the cactus?
I found a walkthrough for it :o
But it is all in German, so you'd have to babelfish (or alternative) to translate it :-\
I'm going to send it to you!
Ich spriche Deutsch, das ist kein Problem. Bitte senden sie mir den Laufdurch. Danke schon.