Mega Hero

Destroy as many of the giant girl's clothes as you can to earn more rewards.
Press the [M] key when you have enough energy.
You will be able to transform into a giant hero within the time limit and fight against the giant girl.

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Skills / Upgrading / Treasure Hunting
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Learn new combat skills.
Or upgrading your body's abilities.
or picking up better weapons in the game.
All of which will give you a better edge in battle.

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Transform / Defeat / Make Love
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H-scene after transforming into a giant hero and defeating a giant girl.
You can freely change the clothes and accessories of the giant girl.
You can change the angle of the camera to view the scene.