I played petridish for more than a year now, and i think a lot of bugs and glitch should be taken in consideration... I mostly play MS, so it might not apply to all gameModes...
Here's a list of anoying bugs i noticed:
1. If u split too quickly while getting a 1-2 seconds of freeze, then some of your cells are duplicated and stuck on the background, witch is affecting the position of what u see in the map... I seen the red button that we all have to spam to some way earase the glitchy cells, but that's a weird way to fix a bug...
2. When i started to play MS a lot, i could split rly fast, each time i was pressing my space bar, my cells were splitting. But now, i feel like there's kind of a delay to ensure i don't do it too fast... And my keyBoard is working rly well btw...
3. It takes too much time to merge!! It's like one second or so!! Tf!! Stop using such delays!! The game play is even borring myself sometimes ´cause of this ;).
4. Sometimes, i can't even move my cell anymore!! It seems i need to click on my mouse or send other inputs than just my cursor position... But when i refresh, it goes back to normal... Tf xD.
Plz do some modification to your source code! This game is in someway getting worse than agar.io... Make petridish.pw great again! We love petridish!