House Of The Dead 2 And 3 Return - Platform: Wii

Completion bonuses in House Of The Dead 2:
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Successfully complete House Of The Dead 2 to unlock the Very Easy and Very Hard 
difficulties; and the abilty to increase lives to 5 and continues to 9. 
Successfully complete House Of The Dead 2 in Original mode to unlock the House 
Of The Dead 2 mini-game. It becomes available when you choose House Of The Dead 
2 again at the main menu. The mini-game has prizes that are items from House Of 
The Dead 2's Original mode. Note: You cannot play the mini-game again until you 
complete House Of The Dead 2's Original mode again.

Completion bonuses in House Of The Dead 3:
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Successfully complete House Of The Dead 3 to unlock the Very Easy and Very Hard 
difficulties; and the abilty to increase lives to 5 and continues to 9.

Extreme mode in House Of The Dead 3:
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Successfully complete House Of The Dead 2 and House Of The Dead 3 to unlock 
Extreme mode, which is a single player only mode that requires you to hit weak 
points on enemies in order to kill them and allows you to use a blocking attack.

Free Play mode in House Of The Dead 3:
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Successfully complete the first two chapters of House Of The Dead 3 on the 
Extreme difficulty to unlock the "Free Play" (infinite credits) option.