• 2 Hedgehogs
• 1 Alien (Motion picture)
• 1 Combat
• 1 Extraterrestrial beings
• 1 Human-alien encounters
• 1 Interactive multimedia
• 1 Life on other planets
• 1 Racing
• 1 Science fiction
• 1 Shooting
• 1 Skateboarding
• 1 Sonic the Hedgehog (Fictitious character)
• 1 Sony video games
• 1 Space warfare
• 1 Video game characters
• 1 Video games

• 1 Microsoft Corporation
• 1 Sony Computer Entertainment

• 3 English

• 3 Computer games
• 3 Video games
• 1 Computer adventure games
• 1 Sony video games

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