Instructions are all in the game. Hearts will replenish Austin's health. If Austin loses all five of his health points you will lose the game. The left variable shows the world number Austin is in and the right shows the level number. After five levels Austin will advance to a new environment. Sometimes there is a glitch where the "Click Here to Begin" text doesn't show up after the first time you click the flag. To solve this, just click the flag again.
This game is very old, I made it a long time ago, but now I decided to share it. The character Austin belongs to @ekirts.