Use the arrow keys for Mario, WASD keys for Luigi Coins: Yellow = 1; Red = 2; Blue = 5; Green = 10 Coin graphics, coin sound, jumping sound and 1Up sound are all property of Super Mario Bros X (I changed the coin graphics, though)
Double click the green flag, triple click if necessary Play in the editor for best speed I didn't even know there would be 100 coins even... Credit to RHY3756547 for the original platformer base