How To: 2020 Planet X story level reward
Successfully complete the 2020 Planet X level in story mode on the easy difficulty setting to unlock the 1965 Mansion, 2000 Docks, and 2035 Spaceways levels in story mode; 2020 Planet X level in arcade mode; Peekabo Jones, Mary-Beth Casey, Jacques Misere, Olga Strom, R108, and Gretel as playable characters in arcade mode; "Space Opera" as a Bot Set in arcade mode; and Tuxedo Cyborg, Red Alien, and Green Alien as Bots in arcade mode. Complete the level on the normal difficulty setting to unlock the Spaceship level in arcade mode.
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