Season 4 Episodes13
Cast4

Greg Cipes

Kevin Michael Richardson

Corey Feldman
SPRX-77

Mark Hamill
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Ranked #1 of 13 in Season 4•+1.4 vs season avg
The Hyperforce are racing against time as Mandarin and Valeena and a newly turned evil Sparx try to retrieve the Soul of Evil, which will help to bring back Skeleton King. Will they succeed and stop them? Will they save Sparx from the darkness? Or

Greg Cipes

Kevin Michael Richardson

Corey Feldman
SPRX-77

Mark Hamill
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Share your take and reply to other fans.
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"Soul of Evil" is episode 13 of Super Robot Monkey Team Hyperforce Go! season 4. It scored 8.0/10 from 29 votes, ranking #1 of 13 episodes this season (season average 6.6). It aired on December 16, 2006.