Sure! Here's a simple 2D game based on Among Us that you can play on a smartphone.
In this game, you control a red square representing the Among Us crewmate. You can move the crewmate around the screen by tapping anywhere on the canvas. The crewmate will follow your touch input, and its position will continuously update according to your touch movements.
Please note that this is a basic implementation and doesn't include any actual gameplay mechanics or interactions with other characters. It's meant to demonstrate the movement capabilities in a simple 2D game environment. Feel free to expand on it and add additional features as per your requirements.