I've been working a bit on a post jam version. Which is always something I say I'll do but never quite get around to it. Change log below but most significant is I've narrowed down the lag I think and have take steps to mitigate it. More work to do still but far more playable at higher levels.

Original entry: https://ldjam.com/events/ludum-dare/47/what-goes-in-must-come-out

Post Jam Version: https://simplepotential.com/projects/LD47v2/game.htm

• Changed keyup Event Listener to a switch statement rather than multiple listeners
• No longer using keyCode on the KeyboardEvent object
  • Using “code” as keyCode has been deprecated
  • Adjusted appropriate code to check based on string matches rather than numeric codes
• Removed “S” as the way to start the game
  • It is now Space or Enter.
  • “P” can also be used to Start the game
  • The same keys all now pause the game as well.
• Pooing can now occur when you are >= 50% belly.
  • Speeds up game play
  • Keeps it more interesting
  • Currently a 5% chance to poo when above 50% belly
  • At 100% belly, you poo all excess % just as you would have before
• Corrected bug with Player movement cost
  • I was adding/subtracting based on players Belly fullness but never using the value from that calculation so your energy cost was always flat.
• Removed play speed increase based on score.
  • Thought this might be the source of lag but I’ve managed to reproduce the lag I think so still investigating
  • Game is fast paced enough without increasing the actual play speed though
• Corrected all spellings of Collision
• Added more commenting
• Food is now removed from game play if it gets poo on it.
  • I mean, who wants to eat food with poo on it right?
• Mouse cursor now hidden from the game play area
• Pressing F2 will now start a new game without having to refresh the page
• Max food that can spawn at any time is now 30
  • This balances the game a bit
  • Also helps a bit with the lag since there is less things to collision detect
• Turned player moving sound into a loop rather than play/stop each tick.
  • This has helped a lot with lag
  • Removing all sound gets rid of all lag but I’d prefer another solution and I’m still investigating.