Canon gun 'blood' - fake death scene for Halloween

Halloween is coming, and young people have lots of fun to spoil naughty and show their creativity. Like disguising themselves as horrifying characters or scare games, and even more amazing is to fake a deadly scene with a splashing blood effect like a Hollywood horror movie, with just a set of pneumatic machines. and some fake blood. If you have the idea of ​​making a horror movie for Halloween, this is going to be a very impressive trick.