Hii I am a HTML Video game developer and Pixel artist, I can make any kind of 2d html games in 480x360 pixels in a 4:3 aspect ratio and the game can be displayed perfectly on all resolutions that are 1024x768 pixels and higher.
AS you have describe above that you need something like chrome Dino Game, then i think to show this game made by me :- https://fusion-game.itch.io/dino-jump (May be second city can lag because i haven't update it from many times )
So if you like my works then here is my discord :- Gameolution#5217