I have tried running the game on flash player, and the ending screen does not come up. Instead it turns blank. Earlier, when running the game in flash I found out that when Ctrl-Enter is pressed, the game cycled through all the levels and when play is clicked, it jumped to the last level. Is playing the game from an swf file allowed? Is this glitch fine for use?

Playing from an swf file should be fine, and can you please send me a video of this glitch? im having trouble recreating it

I tried replicating the glitch, and it works consistently. The video above showcases the glitch. It should work on the standalone adobe flash player projector available here: https://www.adobe.com/support/flashplayer/debug_downloads.html Otherwise, on web I think you should right click and click play.