https://ifnowcode.github.io/targets
This was originally created from another persons project but I've forgotten what sample game it came from and the code is so heavily modified that I can't find the original to make proper attribution (was able to search for the resources it uses to no avail).
If you know what game this came from or are the owner of the original please email me at ifnowcode@gmail.com and let me know so I can add proper licensing and attribution. I will continue to look for this and update when if and when I find it. My apologies for this mistake.
Due to using CDN's currently I cannot host this on Github pages :( but it will run locally or from a host server that will allow this.