Use W and S its with good graphics and is normal mode (and no glitches unlike the the original by Shadow_master623)
To solve the glitches, I found it came from when the back is hit and you either win/lose. When you do that and restart, since its touching it and then restarting, it'll stop all scripts. In order to solve that you just add a wait before it stops all scripts in order to stop the glitch.