The Fungooms
Most internet games for young toddlers are displayed in a small window in the middle of the screen. I often find my kids leaning too close to the screen to see details which they really shouldn't have to do. Fungooms games are all designed to run full screen. Simply click on the small box icon in the top right hand border of your browser to expand the window to fill the screen. Guaranteed no squinting!
https://www.fungooms.com/