Hmm...this is a tougy. To balance out the hacks, deathnote had more...but glitches which is annoying. Yours does not as the speed is less...perhaps you could edit the speed and make it faster but not to fast so you go through walls and glitch - the same for jump. If you did that, you would win.
When you die, you are invincible for a few seconds. It uses an invincibility timer. I changed the default from 0 to 5, so you start off invincible, and then changed it so it doesn't decrement ever second so you stay invincible.