Also, those scans posted didn't look like anything beyond anything YYH has done. And Yusuke has seen/fought dozens of enemies with weird gimmicks and techniques, and he's proven to be surprisingly resourceful in fights (sticking a glowing cigarette butt into a guy's belt so he can see where he is in total darkness, using his spirit gun to rocket propel Kuwabara, using his wet t-shirt as an effective weapon, etc).
Urameshi
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