I like the concept of the game, but I think it could be more polished, for me, it felt weird grabbing the side of walls. You could also give more instructions to player. In the first level, I get a flag and it wrote lose for me, I thoug I could not fill it, but I got that I had to fill the secure one first and then this lose flag.
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Thank you for the feedback! I agree with everything. The wall grabbing was unintentional at first, then I decided to turn it into a feature to spice up the level design; it does need polish though. There were some bugs with the securing code that arose when I added NPC securing. By then it was too late to address properly and still have time for the level design, so I added some serious spaghetti at the end XD