SGB isn't compatible with any GBC only game (identified by having a clear cartridge case), which Pokemon Pinball is (although it is an exception to that clear case rule, having a black one).
As I understand, having a rumble pack sticking out of the top of an SNES is bad for the system.
The rumble pak is activated by a battery which can easily be taken out though.
[quote name='Shidou Mariya' date='Nov 17 2010, 10:05 PM' post='4889940']
I'm a collector, but only to a certain extent.
Not as extreme as Rickstilwell though.[/quote]