"Captain Bumper" runs on any PowerPC - based Macintosh: iMac, G5, G4, G3, iBook, PowerBooks G3, 8600, 9600, 5500, etc...
However, for a smoother performance we advise a fast iMac or a G4.
"Captain Bumper" runs on Mac OS 8.6 or above (Mac OS X supported in native mode).
"Captain Bumper" needs at least 64Mb of free built-in or virtual memory.
After download, if the file will not expand automatically, you may first need to download Stuffit Expander 6.x or greater from Aladdin Systems, Inc. at http://www.stuffit.com/mac/expander/index.html