Hotpink, Annue - Tentacle Locker 2 Ver.1.1 Win/Mac/Linux

Use the arrow keys (or A and D) to move around, and Space to grab.
Once you've caught a girl, you can take a peak at whats going on inside ;)
While watching, use the arrows to advance, or esc to force out.

The 'M' key also opens the menu. Use the Comma ',' key to change the screen size.
Holding 'esc' for one second also closes the game if you need a quick escape.