Overview:

What is the Tight Hole?
The Tight Hole is a dungeon so narrow that you can only get through it on your hands and knees.
You can’t move properly inside the hole.
Make good use of left and right movement and lying down and standing to avoid enemy attacks.
You can clear the game if you can escape the boss monster.

How to play
Left and right movement: Left and right keys
Lying down: Down key
Standing: Up key
Magic attack: Z key + directional keys
Pause: Esc key
Escape from restraints: Up, down, left and right keys

Defeat enemies you can’t avoid with magic attacks that use MP.
You can fire four types of magic attacks by using no direction input or up, down, left and right.
You can charge each one by holding down for a longer period to make it a more powerful magic.

MP recovers over time, and recovery speed increases if you are close to the boss.
You can also increase the maximum MP value and charge speed from the status screen.

Standing Ass Picture
The standing ass picture in the upper left of the screen (can be changed in the options) progresses in development every time she is violated.
The development stage can be changed from the status screen after obtaining a trophy.
You can adventure at your preferred development stage.