After 3 years I'm probably not picking this up again, so enjoy this little demo. Uses WASD and arrow keys. S and DOWN can be used for a harder bounce on the trampoline. One feature I started working on but only programmed for player 1 was the ability to walk on the ground and push the trampoline. Player 2 just falls like in the original. I also added an unfinished coin that doesn't move on screen, but you can still try to grab it.
Feel free to use any coding in here, long as credit is given