Oh, ok, I won't go too hard on you since this is your first game. So maybe a menu, add some settings like graphics, audio, res. Now you obviously don't have to add that. Maybe add a pause menu though, so you can still fiddle with the settings and quit the game. It would be good to add a reward or a "Good Job" at the end instead of instantly restarting the game. And when you walk, maybe increase the speed a little, jumping is fine. And add who it is by and the title of the game IN the game. So yeah, um, yeah I hope this doesn't seem harsh, just some simple suggestions and critiques!