20-seekers-make a name called Sash Rendar(s and r capitalized),now beat all levels until gall spaceport and when you get the seekers in the outrider you should get 20 seekers
powerups-enter JABBA on the hard or jedi setting,and all of your weapons would be powered up
credits-veiw the ending CREDITS
Wampa Stompa-master cheat, don't forget the capitol w and s