Plate game

this is my SECOND unity game, as i am learning to code, i have a previous game called grass game, where i got first person movement down, and this game i have now learned how to make a UI in a game. Do not judge me, because like i said previously this is only my second game. I am gonna make another game soon but i am not sure when, or what it will be. thats all there is in this game, just a plate with a button labeled "button" that you press to make the plate disappear and reappear.