I am a 14 year old from Lithuania. There are no types of schools of making games there(If you dont believe it you can check). And i recently got an idea of making one game( i call it GRAPO because of the 3 first letters of gravity and 2 first letters of portal).I wanted to make a mega man style game with portals just like from mari0 and gravity mechanics from VVVVVVV.i have made the art assets for the game sendspace.com/file/i1a86c . And tryed prototyping this idea (by the way its my first time making a game). But i ran into problem like frame rate going down, not knowing how to make enemys smart, how to make my character rotate 180 deggres and more. So i am kindly asking if someone can teach me the basics making a responsive platform game.