Finn practices his sword fighting skills at the candy junkyard, where he meets an old gumball robot named Rattleballs. To Finn's shock, he finds out he's not the master swordsman he thinks he is. What the what?! Finn begs Rattleballs to train him, but he soon discovers his mentor's deep, dark secret... a secret that will ultimately test Finn's loyalty to Princess Bubblegum.false2026-08-02 15:21:24Rattleballs7.2312014TV-PGtt3468222475309012ActionAdventureAnimationI:\Media\Shows\Adventure Time (2010)\Season 05\Adventure Time (2008) - S05E46 - Rattleballs (1080p BluRay x265 ImE)-thumb.jpgAdventure Time4652014-01-27PGSSUBPGSSUB19201080engprogressiveFalseFalse