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Sega Classics Collection Cheats

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Unlock Additional Game Modes in Alien Syndrome

To unlock Time Attack mode in Alien Syndrome, play and complete the Story game.

To unlock the Retro difficulty level, complete Story on Easy and Medium skill levels. Retro makes you rescue all trapped people in a level before you can exit to the boss.
Verified by: this cheat is unverified Submitted by: DCRage on April 07, 2006

Unlock Additional Game Modes in Alien Syndrome

To unlock Time Attack mode in Alien Syndrome, play and complete the Story game.

To unlock the Retro difficulty level, complete Story on Easy and Medium skill levels. Retro makes you rescue all trapped people in a level before you can exit to the boss.
Verified by: this cheat is unverified Submitted by: DCRage on April 07, 2006
(0.0972/d/web8)