It'd be great for this game to be a bit smaller resolution wise as people using older 4:9 monitors or monitors using sizes as small as 1024x1280 make it very hard to figure out how may gems you have unless you width scroll.
Zooming out your browser should help. lower than 720p and it will get hard to make space for everything (and it will be hard to read on modern monitors)
Add a disable zombies and particle option to the game, this would greatly increase the average FPS. Also would greatly increase the quality of the game. Overall still a fat 5/5
Zooming out your browser should help. lower than 720p and it will get hard to make space for everything (and it will be hard to read on modern monitors)