Henry Hatsworth in the Puzzling Adventure (Nintendo DS)
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Boss Strategy
This strategy can be used with any enemy, though it works particularly well for the majority of bosses. Once you can acquire the boomerang, do not trade it for another sub-weapon. The boomerang, when charged to the maximum level with puzzle combinations, will track the opponent and cause most to stop attacking.
Gentleman's mode
Successfully complete the game. This is a more difficult version of the game. You will overwrite your completed saved game and reset everything to 0%.
Level 5-?
There is a secret level in Tealand. In order to reach it, you must go to level 5-2 and work your way up the clock tower. Once the next area loads, continue upwards. There is an area that forces you to move right, and an arrow sign telling you to go up. Pass the sign and fall into a small gap. Walk to the right and you can walk through a false wall. Continue climbing all the way to the top. There will be a large white chest, just like the end of every stage. It will unlock Stage 5-?, which is located in the clouds. Henry will begin the level in a small blimp.