You should make it not pop out the instant you put on the hidden blade. Instead, make it so when you wear it, it only shows the brown part. Make an animation so when you press a button the blade comes out, then you can do some damage, and you can press that button again to hide it. Instead of having it instantly pop out, people would see the person wearing the brown thing and be aware so it would be more fair. I think this might be possible.