Hey there, I think this is a pretty solid start to a game. I would have liked to have seen some backstory or explanation about the dinosaur/corona connection though! I think a few tweaks that could really help enhance the game would be some bullet trails, as its difficult to always tell where you're shooting. Also I think severely lowering the spawn rate at the start and having it increase over time would help tremendously as it doesn't take very long before you're kiting a literal horde of dinosaurs around the map trying not to die! Oh, and lastly I think you should add retry/restart and quit buttons at the end, I had to alt+f4 to get out of the game.